R&B singers Usher and Miguel linked up backstage during the first day of the 2011 Coachella Valley Music & Arts Festival Friday evening (Apr 15) at the Empire Polo Club in Indio, California.

Janet Jackson was fresh-faced as she hosted a book signing for her new book “True You: A Guide to Finding and Loving Yourself” Friday at Book Soup in West Hollywood, CA.

NBA star Dwight Howard and Emmy Award winning entertainment journalist Nancy O’Dell took the all-new Blackberry Playbook for a test drive at the Blackberry Playbook Launch Party, hosted at Center 548 Thursday (Apr 14) in New York City.

Actress Vivica A. Fox was spotted at the Vault VIP Preview event, held at Vault in Miami Beach Thursday.

Actor Josh Duhamel posed with a pair of Reebook’s new RealFlex sneaker Thursday (Apr 14) with actress Ali Larter on the red carpet of the shoe’s launch event at SIR Stage 37 in NYC.

Then Josh demonstrated how the shoe works with some movie stunts.

Star Jones showed up at the 2011 Arthur Institute for Urban Health’s Sports Ball Thursday evening at Chelsea Piers in New York City

Troubled actor Charlie Sheen and two of his goddesses, Bree Olsen and Natalie Kenly, posed on the red carpet of the official after-party for Charlie’s “Torpedo of Truth” Tour stop Thursday at Muzik in Toronto, Canada.

Jamie Foxx paid a visit to BET’s 106 & Park Wednesday (Apr 13) to promote his appearance in the upcoming movie “Rio.”

Jamie, Jamie, Jamie …. (LOL!)

Rapper Waka Flocka Flame also made a guest appearance on BET’s 106 & Park Wednesday to promote some new projects of his own and to celebrate the success of his debut album Flockaveli.

Rick Ross and Wale made appearances on 106 & Park just one day prior on Tuesday (Apr 12) to talk about Maybach Music Group.

BET reality star Toya was also on 106 & Park Tuesday to discuss her new show “Toya: A Family Affair,” which debuted to over 1 million viewers last week.

And UK crossover artist Jessie J, whose debut album Who You Are officially dropped in the U.S. last week, performed on 106 & Park to promote her album’s stateside release.