Janet Jackson continued promoting her film For Colored Girls with a visit to “Lopez Tonight.” The shy entertainer discussed what she watches on TV, plans to return to the studio next year, her upcoming book, her brother Michael’s favorite food, and how she prepared for her movie role. Plus, she taught George Lopez a little choreography from “Rhythm Nation.”

Cee Lo Green and his all-female band delivered a red-hot performance of his viral sensation “F**k You” on “The Late Show with David Letterman.” “It’s OK” will be the follow-up single from his Lady Killer album.

N.E.R.D. rocked out to their Nothing album cut “God Bless Us All” on Monday’s “Tonight Show.” Swizz Beatz recently sampled the song for his Rakim-assisted Monster Monday offering “King Tut.”