Lady Gaga's friendly romance

Feb 12, 2010, 6:02 GMT

Lady Gaga is reportedly dating her "best friend".

The 'Poker Face' singer is said to have grown increasingly close to her style collaborator Matthew Williams in recent months, who she previously romanced for over a year.

A source said: "Matthew and Gaga have been dating for months. They were together on and off for more than a year, but called it off when mixing work and love became too difficult."

After the pair first went their separate ways, Gaga began dating an entrepreneur named Speedy while Matthew started a new relationship and became a father.

However, both romances fizzled out and the former couple have now reconciled after growing close on the star's 'Monster Ball' tour.

The source added to InTouch magazine: "They spend all their time together, and travel everywhere, so it was bound to happen. Speedy dumped her, and Matthew left his girlfriend for Gaga."

The singer has previously revealed Matthew was the creator of her infamous 'hair bow' hair style.

She said: "Me and Matt Williams, he's my creative partner and my best friend, we design and creative direct everything together, we were on the set of my 'Poker Face' video. We were looking through books, and he was looking through a Gaultier fashion show, and Gaultier did all this amazing hair art with cats and giraffes, like crazy amazing.

"And I was yapping about bows. I was imagining myself with hundreds of bows. 'Bows are everywhere! Bows are the next big thing! They're not on the street but they're at the parties!' So he's saying, 'Yeah, I like bows, but everyone's going to do it.' And I said, 'Let me see that hair art. Go and put a f**king outfit on my head.' "