2009年
共进榜13首,男2女11。
嘎嘎横空出世,四大局面初步形成。鸭鸭比伯初进榜
#2 Poker Face-Lady Gaga
#3 Just Dance-Lady Gaga Featuring Colby O'Donis
#4 Love Story-Taylor Swift
#11 You Belong With Me-Taylor Swift
#25 Hot N Cold-Katy Perry
#31 Run This Town-Jay-Z, Rihanna & Kanye West
#35 LoveGame-Lady Gaga
#36 Waking Up In Vegas-Katy Perry
#53 Paparazzi-Lady Gaga
#76 White Horse-Taylor Swift
#77 Disturbia-Rihanna
#88 Forever-Drake Featuring Kanye West, Lil Wayne & Eminem
#89 One Time-Justin Bieber