So, Girl Groups with the Most UK 1# Debuts for Singles:       8  Spice Girls Say You'll Be There, 2 Become 1, Mama/Who Do You Think You Are, Spice Up Your Life, Too Much, Viva Forever, Goodbye, Holler/Let Love lead The Way     5  Sugababes Freak Like Me, Round Round, Hole In The Head, Push the Button, Walk This Way      4  Bwitched C'est La Vie, Rollercoaster, To Yo I Belong, Blame It On The Weatherman   Girls Aloud