Beyonce will release another album with a few AMAZING songs and receive more than 5 grammy's for it (it could be due to her father's bribery...)
Britney will debut at #1 and have a huge hit single, and the album will debut at #1 as well, but then will fall down the charts.
Lady Gaga will overwork herself and possibly faint on the stage again. But her new album will be a massive hit with more than 3 top 10 hits on the Hot 100.
Avril will have a huge hit with What The Hell. And her album is amazing!
Rihanna will continue with getting #1's (her "different" performances will continue...)
Kelly Rowland and Nicole Scherzinger will continue to flop and their albums won't see the light of day. Nicole might get hits in the UK though. Leona Lewis will flop even harder with this new album than with Echo, except for in the UK where it'll be a hit album.