The Best Grammy Debuts Of All Time Lady Gaga in 2010 When your Grammys debut also doubles as an Elton John duet, that's when you know you've made it. Here, the emcee searches for the "real Gaga" amongst a sea of fakes at the Fame Factory, reminding everyone she has five No. 1 singles in the process (iconic). The rebel emerges from her cage to perform "Poker Face" before being sent to the incinerator, only to reappear behind a double-sided piano with Sir Elton John. Together, the duo sing a mash-up of Gaga's "Speechless" and John's "Your Song." That's how you do a debut. source