It’s apparently on again!

Alcohol-free actor Jesse Metcalfe and Girls Aloud singer Nadine Coyle seem to have rekindled their on-again, off-again romance in London on Satuday.

The couple showed up hand-in-hand for The Big Event at the G.A.Y. Astoria in central London. The recently rehabbed actor was seen sipping on a sugar-free Red Bull while holding Nadine’s coat.

Jesse, 28, and Nadine, 22, have been together on-and-off since March 2006.

10+ pictures inside of Jesse Metcalfe & Nadine Coyle still going strong… More Here! »

Girls Aloud singer Nadine Coyle found herself in the arms of on-again aspiring singer boyfriend Jesse Metcalfe while cuddling together at a Los Angeles gas station on Friday.

Jesse, 28, and Nadine, 22, were also spotted having a romantic dinner together at One Sunset restaurant in Hollywood last week.

The former Desperate Housewives actor intends on releasing his new music in the coming months. “I think a lot of people will be surprised to learn that I actually have talent,” the hopeful rock star has said. “I love playing to an audience. It’s really gratifying.”

Bigger pictures coming soon!! More Here! »

A PECtular shirtless Jesse Metcalfe and girlfriend Nadine Coyle look to be enjoying their Hawaiian vacation on Wednesday a bit too much.

It all looks a little too posed, doesn’t it?

But hey, they look happy and in love. So who am I to judge? Besides, in a recent interview with OK!, Nadine said that she would love to have Jesse’s children. Can we expect to see little Jesses running around soon?

The former 28-year-old Desperate Housewives hunk and the sexy 21-year-old British “Girls Aloud” singer started dating in March 2006. Happy one-year anniversary to the happy couple!

UPDATE :: You can watch video of shirtless Jesse and Nadine on the beach.