Kirsten Dunst & Johnny Borrell Cozy Up in London
03/29/2007 AT 09:05 AM EDT
Dunst, who met the Razorlight frontman at a Los Angeles gig March 9, first followed her new man to Austin's South by Southwest music festival, where they were spotted getting cozy. Now, she jetted across the Atlantic to be with him in London, where he has a break from touring.
But first Dunst, 24, played Borrell's No. 1 Fan as her 26-year-old beau and his band performed at the Voices of Slavery charity gig at the Forum in London on Sunday.
"She sung along to all the tracks," a fellow concertgoer tells PEOPLE.
Dunst – in a pale green top and jeans – then joined her beau for some celebratory pints at The Hawley Arms pub in Camden after the show.
On Monday, the pair lunched on bangers and mash – British for sausages and mashed potatoes – and strolled around London's Covent Garden.
Dunst, who filmed Wimbledon in London during the summer of 2004, brought Borrell on Tuesday to J. Sheekey's, a fish restaurant that serves mushy peas, which the actress came to love while filming the movie. They capped off the evening by downing a few pints at The Lamb and Flag, a 300-year-old pub.
"She was very smiley," a source tells PEOPLE. "They both were. They were in their own little world."