Which line up of the Sugababes had the best debut single? I'm bored and I like music, go figure.
1.0 - Overload
2.0 - Freak Like Me
3.0 - About You Now
4.0 - Freedom
N.B. I count "debut" as the first song off a fresh album project with each new line up, e.g. Amelle and Jade came into the band mid way through an album campaign so it wasn't "their" material. I don't count Easy or Walk This Way as being Amelle's debut because Easy was with the greatest hits and Walk This Way was a charity single.