Credit: Dave Hogan/Getty; Frazer Harrison/Getty

Mumford & gal.

Things appear to be heating up for Carey Mulligan and Marcus Mumford of the indie band Mumford & Sons.

The UK's Daily Mail reports that the Oscar-nominated actress, 25, and the British folk singer, 24, took a romantic holiday in the Buckinghamshire area of South East England this weekend, after spending last week in the historic Orkney Islands. They've been spending time at his place in London, as well.

As Us Weekly previously reported, Mulligan and pal Jake Gyllenhaal caught a secret Mumford & Sons show in Nashville, Tenn. February 7, at the home of band members from The Apache Relay.

"At the end of the night there were just the musicians, Jake, Carey, and the Mumford boys," an insider told Us. "We had some pizza, and just played music. Jake picked up a guitar and Carey joined in on 'Amazing Grace.' Marcus and Carey seemed really friendly."

And a few days later, Mumford and Mulligan caught a secret Arcade Fire show in NYC and then hit a private members only club, a second source tells Us.

"They were whispering to each other and enjoying the show," says the source. "They definitely seemed like a couple."

In October, Mulligan split with longtime beau Shia LeBeouf, while Mumford broke up with singer Laura Marling last year.