Credit: DICAPUA/ Splash News

Mere weeks after announcing their split, Miley Cyrus and Liam Hemsworth are an item once more, a source close to the couple confirms to

Spotted grabbing Starbucks together Saturday in Los Angeles, the pair reunited after Cyrus, 17, returned from filming her new flick, LOL, in Paris.

Cyrus and Hemsworth, 20, met in 2009 on the set of The Last Song, based on the Nicholas Sparks novel.

At the L.A. premiere of Last Song in March, the Aussie actor told Us they had "a lot of fun" filming the romantic drama.

"It was pretty much jokes every day," he said. "Jokes and shooting on the beach -- there wasn't much to complain about!"

The same month, Cyrus gushed to Parade: "[Liam has] become my best friend in the whole wide world. I love him. He really respects me for who I am because coming from Australia, he really didn't know me as the celebrity I am here. I got to tell him about myself on my own terms and my own way. He had no preconceived notion of who I was supposed to be."