Flo-Rida, Kellie Pickler

Slip into your Apple Bottom jeans! Rapper Flo Rida will perform on American Idol's April 8 results show.

Flo Rida's appearance comes on the heels of such heavy-hitter guest performers as Kanye West, Stevie Wonder, Joss Stone, Smokey Robinson and Lady Gaga. Mr. Rida will perform his monster hit "Right Round," from his debut album Mail on Sunday.

Also performing on Wednesday's show will be former Idol contestant — and lovable ditz — Kellie Pickler, who will sing her country single "Best Days of Your Life."

For the latest on American Idol, tune into TV Guide Network's Idol Tonight every Wednesday at 8 pm/ET and Idol Wrap every Friday at 8 pm/ET with co-hosts Kimberly Caldwell and Justin Guarini. Plus get more on your favorite Idols every Friday with American Idol Rewind at 7 pm/ET.