Christina Milian and Lil Wayne call it quits after over a year of dating -- find out what went wrong Credit: Michael Tran/FilmMagic

Fire’s out! Christina Milian and Lil Wayne have called it quits on their relationship, a source confirms to Us Weekly. The “Start a Fire” collaborators broke up last month but have remained amicable, and both attended Alexander Wang’s New York Fashion Week show on Saturday, Sept. 12.

Milian and Lil Wayne dated for over a year. In July 2014, Us confirmed the pair were an item after Milian split from her fiancé, Jas Prince.

According to a source, their busy schedules were partly to blame. “They’ve broken up a few times before. She’s got so much going on with Grandfathered, her E! and Hulu shows, and working on her album with Wayne. It doesn’t help that Wayne is all over the place too. They both have insane lives and schedules."

“We’re both very happy,” Christina told Entertainment Tonight this past May while talking about her track “Rebel.” “He’s very special to me, yeah. For me, I’m so inspired by the relationship that I’m in that it’s definitely an experience. It’s that careless, hopeless, romantic love — that feeling of ‘I will do anything for you’ and it’s just incredible and so yeah, ‘rebel for you’ means ‘I’m all about you.’ We love that!’” Milian also told Us in January that everything was good between the two. “Everything works,” she gushed to Us.

"They know and recognize each other — he's very much a part of my life and Violet is very much a part of my relationship," Milian told Us of her daughter with ex The-Dream, Violet, and Lil Wayne this past June, adding that “a lot of the time he’s on tour” and she’s “working” though.

The Christina Milian Turned Up star even got a tattoo in honor of the rapper. The songstress had “Love hard..TnT,” inked on her body in honor of their nicknames, Tina and Tunechi.

ET was first to report the news.

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