Charlotte Ronson has recently confirmed her relationship with Fun front man Nate Ruess.<

The 36-year-old fashion designer and 32-year-old Ruess first went public with their relationship on Saturday, July 19, when they attended the Opening Event of Sound Waves at The Beach at Gurney's Montauk Resort & Seawater Spa, according to US Weekly.

A source dished to the publication, "They've been dating for a few months. They're really happy. He is super sweet with her."

Another source who spotted the couple at Saturday's event also revealed that the two didn't want to pose together for photos, but stayed with each other the whole time.

"They were very incognito and didn't want to pose for photos but stood close and held Charlotte's dog Oliver... it's been super hush! They were introduced a while ago and have met a few times but it recently turned romantic. They have quite a few mutual friends actually. It's cute," the insider shared.

Ruess and Ronson who first met through the latter's twin sister, DJ Samantha Ronson, have not confirmed nor denied their relationship as of late, The Indy Channel noted.

Meanwhile, Ruess was previously involved with Rachel, Antonoff, his bandmate Jack's sister, who also happens to be a fashion designer, Contact Music confirmed.

Multiple sources confirmed that Ruess and Antonoff ended their relationship due to trust issues. Prior to his relationship with current girlfriend Ronson, Ruess was also linked to British singer Ellie Goulding, according to Unapix.

According to sources, Ruess fell in love with Goulding during the singer's tour in Australia, where they both had the chance to perform together live, the same publication noted.

Other than this, Ruess was also rumored to be gay, along with some of his Fun band members

Jack meanwhile is currently involved with "Girls" actress Lena Dunham, US Weekly noted.