Gaga for sure! She gets the most attention whenever she's showing up for a high-profile event. Hell, her wheelchair made more headlines than some girls have this year.
Katy Perry, duh.Why? every song went to number 3 at least and 6 songs went to number #1 from an album.She will get Walk of Fame soon..so...YAY!!!ouh and lets not forget with 69 consecutive weeks.
Gaga is more of a complete package in regards to her status as a musician, fashion icon, and philanthropist. Just look at the immense success of Fame. She sold a huge amount of bottles on her name and brand alone without a new album to promote.