Justin Bieber has been showing off his abs quite a lot these days. Appearing on "Late Night with Jimmy Fallon" Feb 5, the pop sensation not only flaunted his abs but  also gave away the secret to staying trim: Staying away from pasta.

Bieber looked gleeful throwing bowls of pasta at the audience and was joined by Fallon in the act. Dressed in a pair of black leather trousers, a camouflage coat and eye catching red shoes, the Canadian singer pulled up his shirt to flaunt his abs, according to Gossip Centre. As if that wasn't enough the singer also showed off some funny dance moves.

The 18-year-old had tweeted fans asking, "What are you doing today?" He not only got comments from fans but also got a response from the show's account, @LateNightJimmy which said, "Having you on our show."

The "Baby" hit maker's relationship with Selena Gomez is still being speculated as it isn't clear if they have reconciled after they split during New Year's Eve in Mexico. Gomez was recently spotted by TMZ leaving Bieber's house after spending time with him.

The on and off couple hasn't been seen together for almost a month and this is the first time they have seen each other since the split, but the couple hasn't confirmed the reconciliation yet.

Bieber was joined by model Naomi Campbell who was visibly excited to meet the Canadian star. Campbell later tweeted a picture with Bieber with a caption that read, "Backstage @jimmyfallon with @justinbieber lovely to meet you."

Campbell looked stunning in a frilly black and white minidress and sported a cute fringe with her locks left loose over her shoulders.