Now this is funny!

Spring Breakers costars and one-time couple, James Franco, 34, and Ashley Benson, 23, joined forces and filmed a hilarious mock music video for Justin Bieber's hit song Boyfriend, and Breaking Celebrity News has the video.

In the grainy and red light video, Franco portrays the teen heartthrob, dressed in a hoodie and wearing a cap in Bieb's signature style, as he dances around a bedroom and lip synchs to the chart-topping tune, while a dark-haired Benson (who looks strikingly like Selena Gomez in the video) hangs around his neck and gyrates on top of a mattress.

As Breaking Celebrity News exclusively revealed in October 2012, Benson, who stars on the hit show Pretty Little Liars, got close to Bieber when she dated his best friend Ryan Good, and it was Bieber's on-again-off-again girlfriend, Selena Gomez, who helped her land her role in Spring Breakers. But after Benson hooked up with Franco on the set, she tarnished her relationship with both Selena and Justin.

Just a month after hooking up with Franco, Benson was dissed by the critically acclaimed actor and started seeing Good again.