United States of America
Mariah Carey is the best-selling female artist of the Soundscan era (album sales since 1991).
Mariah Carey is the female artist with the most 5x Platinum albums: seven.
Mariah Carey is the only female artist to have 9 consecutive albums sell 3 million (3x Platinum).
Mariah Carey is the fastest-selling female artist in the US of all-time, selling over 63.5 million albums in 20 years.
Mariah is one of three women to sell in excess of 60 million albums in the US.
Merry Christmas is the 3rd best-selling Christmas album of the SoundScan era.
Merry Christmas II You is the only holiday album by a female artist and the second holiday album in history to hit #1 on the R&B/Hip-Hop Albums chart.
Mariah Carey is the 6th most-successful Hot 100 artist of all-time. "We Belong Together" is the 9th most popular song of all-time, whereas "One Sweet Day" is the 29th most popular (Billboard All-Time Hot 100 top songs). "We Belong Together" is the 2nd most-successful R&B song of all-time, whereas "One Sweet Day" is the 11th most successful (Billboard All-Time Top R&B/Hip-hop songs).
Mariah Carey has more #1 singles (18) on the Billboard Hot 100 than any solo artist.
Mariah Carey's singles have cumulatively spent 79 weeks at #1 on the Hot 100 (tied with Elvis Presley); she has spent more time atop the chart than any other female artist.
Mariah Carey remains as the only act whose first five singles have reached #1 in the Billboard Hot 100.
Mariah Carey is the only artist to have a #1 single for every year of a single decade (1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999) in the Billboard Hot 100 era (1958-present).
Mariah is the female producer (14) and the female songwriter (17) with the most #1 songs.
Mariah Carey is the only female artist to have her singles from one album (Daydream) spent over 25 weeks at #1.
Mariah is the only artist to have two streaks of 5 consecutive #1 singles:
"Vision of Love" ---> "Emotions"; "Fantasy" ---> "My All".
"One Sweet Day" spent a record 16 weeks on top of the Billboard Hot 100, and remains the longest-running #1 song in US chart history.
Mariah Carey is one of two female artists to occupy the two first positions on the Billboard Hot 100 in the same week with 'We Belong Together" (#1) and "Shake It Off" (#2).
"One Sweet Day" (1990-1999) and "We Belong Together" (2000-2009) were both named the 'Song of the Decade' by Billboard, making Carey the only artist in US music history with two decade-end #1 songs.
Carey was named the 'Artist of the Decade' (1990-1999) by Billboard; she remains as the only female artist with this title.
Mariah Carey is the only artist to have three #1 debuts on the Billboard Hot 100.
Mariah Carey was the first female artist to have a #1 debut on the Hot 100 with "Fantasy".
"Loverboy" was the top-selling single of 2001 (Hot Singles Sales Year-End #1).
"We Belong Together" was the overall #1 single of the year in 2005 (Hot 100 Year-End #1).
Mariah has more #1 airplay hits (12) than any other act. In addition, Carey has 14 #1s on the sales charts (physical + digital).
Mariah Carey holds the record for the most weeks at #1 in total with 93 weeks atop the Hot 100 Airplay (Radio Songs).
Carey is the only female artist with two self replacements at #1 on the Hot 100 Airplay (Radio Songs): "One Sweet Day" replaced "Fantasy"; "Shake It Off" replaced "We Belong Together".
Mariah Carey has the longest-running #1 airplay hit ever by a solo artist spending sixteen consecutive weeks on top, with "We Belong Together".
Mariah Carey holds the record for the most heard song in a single week in the American radio history getting more than 212.1 million listeners, with "We Belong Together".
Mariah Carey is the only artist to hit #1 on four radio formats (Pop, Urban, Rhythmic and Adult Urban) simultaniously, with "We Belong Together".
Carey is the overrall artist with the most cumulative weeks at #1 (45) on the Mainstream Top 40 (Pop Songs).
Carey holds the record for the highest debut ever (#12) on the Mainstream Top 40 (Pop Songs) with "Dreamlover".
Carey is the only act with two songs spending ten weeks or more atop the Mainstream Top 40 (Pop Songs): "We Belong Together" (10 weeks) and "One Sweet Day" (11 weeks). The latter being the 2nd longest-running #1 pop hit ever (sharing with three other songs).
"We Belong Together" is the 3rd longest-running #1 (14 weeks) on the Hot R&B/Hip-Hop Songs ever (sharing with three other songs).
"We Belong Together" charted for 52 weeks (1 year) on the Hot R&B/Hip-Hop Songs.
"All I Want For Christmas Is You" is the most downloaded Christmas song of all-time.
"All I Want For Christmas Is You" is the top-selling digital single by a female artist released before the year 2000.
Carey has proven to be the a crossover artist: ten #1s on the Urban chart, seven on the Rhythmic chart, six on the Mainstream/Pop chart, seven on the Adult Contemporary field, and sixteen Dance #1s. Weeks at #1 by format: 47 (Rhythmic), 45 (Pop), 32 (Urban), 27 (Adult Contemporary), 18 (Dance).
Australia
Mariah Carey is one of six women to have an album sell in excess of 700,000 copies in Australia (12x Platinum).
Music Box was the best selling-album of 1994. It is also the 12th best performing album off all-time.
Austria
Music Box was the most-successful album of 1994.
Brazil
In 2010, ''I Want To Know What Love Is'' became the longest-running #1 song (27 weeks) in Brazil's radio history.
Carey is the most successful foreign act in the Billboard Brazil era, being #1 on the Brazil Hot 100 for six issue editions. Overall, she is the second artist who spent more time at #1 on the main chart (tied with Michel Telσ).
Germany
Carey is the only female artist who dominated a year 100%. In 1994, Music Box and "Without You" were declared Year-End #1 Album and #1 Single, respectively. Moreover, she is one of two soloists to achieve this feat.
Japan
Mariah Carey is the best-selling Western artist of all-time in Japan, selling over 18 million albums. She has sold more than twice as much as any other non-Asian female artist.
#1s compilation is the best-selling foreign album of all-time: 3.6 million copies in total. It is the only album by a Western act with a 3x Million certification.
Mariah Carey is the only Western artist to sell 1 million copies of an album in a single week, with #1s compilation.
Mariah Carey remains as the Western act with the most #1 albums (five) ever.
"All I Want for Christmas Is You" is one of two non-Asian singles being certified Million by RIAJ.
The Netherlands
Music Box is one of the two (non-Dutch) female albums to sell in excess of 600,000 copies (6x Platinum) in the Netherlands.
South Africa
Carey was the #1 airplay artist in 2008.
South Korea
Mariah Carey is one of the two Western women to have a million-seller in Korea, with Music Box.
All Carey's album releases earned Platinum status.
Switzerland
Music Box was the most successful album of 1994.
Taiwan
Music Box is the best-selling international release of all-time in Taiwan.
United Kingdom
"All I Want for Christmas Is You" was declared the #1 holiday song of the 2000s decade.
World
Carey has sold more than 200 million records worldwide, making her one of the best-selling music artists ever.
Mariah Carey sold more than any female artist in the 1990s, selling over 150 million albums and singles worldwide (115M albums + ~ over 35M singles). That's over a quarter of a million records sold every week during the 90s.
Music Box is the best-selling studio album by a R&B female artist of all-time.