Mischa Barton has sparked reports she and The Kooks frontman Luke Pritchard are back together after the former couple was spotted out in London. The actress confirmed she had split from the rock star in March, insisting it was too hard to maintain a long-distance love affair. But the 23-year-old star was spotted partying with Pritchard over the weekend, fuelling speculation the romance is back on. A source tells British newspaper The London Paper, “The Kooks had played a low-key gig to help launch The Flowerpot, a new venue… and the boys were enjoying drinks at an after-party upstairs. Mischa was originally at nearby (hotspot) Proud, but headed over to The Flowerpot once she knew Luke and his pals would be there. “Mischa made a beeline for Luke, and they soon started kissing, before then leaving the party to go back to Mischa’s hotel room.”