Tickets for J Lo's Dubai concert to go on sale soon

Plus: Mark Wahlberg going back to school, Usher to perform at BET Awards, Rihanna and Chris - back together?, Andy Samberg to star in BBC comedy, Alyson Hannigan gives birth, and David Arquette files for divorce.

JLo, who's coming to Dubai. Mark Davis / Getty Images / AFP

Tickets for Jennifer Lopez's concert in Dubai go on sale on Thursday at 2pm at www.timeouttickets.com. JLo will perform on November 22 at the Dubai Media City Amphitheatre as part of her Dance Again World Tour, which kicks off in Panama today. The Dubai show will be her first public appearance in the Middle East. For more information, visit www.jlodubai.com.

Mark Wahlberg back to high school

Mark Wahlberg is going back to high school, via an online programme based in New Orleans. The 41-year-old actor dropped out of school in the ninth grade. "It's an actual diploma. I'm a little nervous," Wahlberg told the Late Show with David Letterman on Tuesday. "But I'm going to make it happen - hopefully finish it within six to eight months."

Usher and Big Sean to perform at BET

The video-of-the-year nominee Usher has agreed to perform at the BET Awards on July 1. The rappers 2 Chainz and Big Sean will also take the stage at The Shrine Auditorium in Hollywood. They join the previously announced performers Nicki Minaj and Chris Brown. Samuel L Jackson will host. * AP

Are Rihanna and Chris Brown back on?

Rihanna and Chris Brown were spotted at a New York club on Monday night, reports the celebrity website TMZ. They were photographed exiting the club separately, but within minutes of each other. The two have been rumoured to have reconciled after they collaborated on songs for each other's latest albums. They broke up in 2009 after Brown assaulted the Barbadian pop star.

Andy Samberg to star in BBC comedy

After completing a seven-year run on Saturday Night Live, Andy Samberg has signed on to star in Cuckoo, a six-part family comedy series on BBC Three also featuring the Welsh actor Greg Davies, reported Entertainment Weekly. "The best of British meets the toast of Hollywood," said Cuckoo's producer Ash Atalla, who also worked on The Office. The series will be filmed next month for broadcast later in the year.

Alyson Hannigan gives birth to Keeva

The How I Met Your Mother star Alyson Hannigan and her husband, the actor Alexis Denisof, have welcomed their second child, named Keeva Jane, reported People magazine. Hannigan posted a photo of the baby's hand on Twitter on Tuesday. The couple met on the set of Buffy the Vampire Slayer and married in 2003.

David Arquette files for divorce

After announcing their separation in October 2010, David Arquette has filed for divorce from Courteney Cox. The actor cited irreconcilable differences in his petition to end their 12-year marriage. Arquette and Cox have a 7-year-old daughter and the actor is seeking joint custody. * AP