Justin Timberlake's "The 20/20 Experience Part 2" is due Sept. 30!

+ Looks like Justin Timberlake's readying new music, and it's due Sept. 30! Yesterday he tweeted an Instagram taken from behind a mixing board with a handwritten sign that read "The 20/20 Experience (2 of 2) Sept. 30th." JT's also in the photo, strumming a guitar. (Billboard)

+ Last night, during a show in Dubai, Justin Bieber was reportedly tackled onstage by a fan. Justin was OK after the incident (although a piano was overturned), and he finished the show after security removed the attacker. (MTV News)

+ This weekend Miley Cyrus joined Instagram! The first picture she shared is her looking stunning from her Maxim photo shoot, which she captioned, "My 1st Instagram is dedicated to all my fans. Thank you for crowning me #1 Maxim Hot 100." (Just Jared Jr.)

+ "Good Morning America" and the "Today" show have each announced their summer concert series lineups. Among "GMA"'s performers are Demi Lovato, Selena Gomez, and The Wanted. "Today"'s lineup includes One Direction, Fall Out Boy, and New Kids On The Block. See the full schedules. (MTV News)

+ Rihanna's "777 Tour" documentary (where Rihanna, journalists, and fans embarked on a whirlwind seven-day world tour) airs tonight on FOX. In the meantime, get a sneak peek of what seemed like a cray cray trip --  one journalist streaked through the airplane aisle! (Idolator)

+ Springfield's most famous family will head to Iceland in the May 19 episode of "The Simpsons," which features an appearance from ambient indie rockers Sigur Rós. The Icelandic group scored part of the episode, which will feature a new song, and the band will also reinterpret the show's theme song. (Pitchfork)

+ Watch Kelly Rowland perform "The Star Spangled Banner" prior to Saturday's championship boxing match between Floyd Mayweather and Robert Guerrero. (Idolator)

Photo credit: @JustinTimberlake