Thursday Dish

Singer Rihanna appeared arm in arm with friend Chris Brown for his probation violation hearing. Brown and his lawyer responded to allegations by prosecutors that he lied about the number of community service hours he's completed. Brown's lawyer accused prosecutors of grasping for straws and jocking Brown around . In the meantime, a rant posted on Instagram believed to be Brown's has been disputed by sources close to the singer. Brown and Rihanna left the courtroom arm in arm. Brown is due back in court in March.  Both are nominated for Grammy awards and Rihanna will perform at the ceremony on Sunday. A column in a Miami newspaper written by Luther "Uncle Luke" Campbell has him weighing in on the recent Rick Ross shooting. Campbell advised Ross to stop acting like a gangster and he won't die like one. Fans will recall that Ross' vehicle was shot as he left a restaurant. Rapper Drake and TLC's T Boz are currently in the studio together. No word as yet on what the two are working on. The beef between rapper Havoc and Prodigy of Mobb Deep was one of 2012's most infamous. Fans got wind of the their feud after Havoc sent out several slanderous tweets directed at Prodigy. Although Havoc initially denied sending the messages, he later admitted that their beef was real. Now, it appears that cooler heads and struggling bank accounts have brought the Queens duo back together again. TMZ reports that the duo will reunion for a world tour commemorating Mobb Deep's 20th anniversary. Their first stop will be at the Paid Dues Festival in Los Angeles on March 30. Some of music's biggest stars are set to perform at this year's NBA All-Star Game set to take place at the Toyota Center in Houston. Fresh off her rendition of "The Star Spangled Banner" at the Super Bowl, singer Alicia Keys will headline as halftime performer at this year's game, which will take place on February 17 at 8 p.m. and will be televised on TNT. The performance should build up anticipation for her upcoming "Set The World On Fire Tour" with Miguel, which kicks off on April 18. Although he hasn't performed much since taking a job as vice president of A&R at Motown, and having a third child, Ne-Yo will perform during player introductions and John Legend will set off the entire evening by singing the national anthem before the game, which is presented by Sean John and Macy's. Per usual, the event will include a Skills Challenge, a Three-Point Contest and a Slam Dunk Contest the day before the game. The event will certainly be a slam dunk. On the tube: "American Idol" on Fox, "The Big Bang Theory" on CBS, "Shark Tank" on ABC and "Community" on NBC. Happy Thursday!