Casper Smart went from being Jennifer Lopez's backup dancer to her BF — and NOW, he's her backup dancing boo!!
The 25-year-old and his 42-year-old lady-love spent four hours Saturday in dance rehearsal for her upcoming performance on American Idol.
It sounds like this week's episode of Idol is going to be a real doozy, between J.Lo and Casper reuniting on stage and Coldplay preforming live.
Um… This episode is gonna be AMAZING!! Setting the DVR now!
[Image via FameFlynetpictures.]