Ke$haNow is definitely Ke$ha's moment. Her party anthem 'Tik Tok' sold more downloads in a single week than any female artist in history, hitting number one in five countries. Her album 'Animal' debuted atop the US Billboard chart. And she's already got a notorious backstory that would make Madonna jealous.

Kesha Rose Sebert grew up in Nashville as the daughter of songwriter and single mom Pebe Sebert -- who wrote Dolly Parton's 'Old Flames Can't Hold A Candle To You.' She appeared on 'The Simple Life' (Paris and Nicole tried to set her mom up on a date) and later went to a party at Paris Hilton's house and threw up in her closet.