Womanizing musician James Blunt is the latest celebrity being tied to soon-to-be divorcee Resse Witherspoon.

Reese was left weak in the knees after a recent James B. performance at LA’s El Rey Theatre.

“She arrived with three female friends and headed straight for the bar,” says an insider. “They sat at a private VIP table and drank white wine.”

Reese and her pals “looked like they were having a great time.”

“She looked relaxed and happy, and when James finished his set and walked into the bar, Reese practically ran to him,” says a source.

“Reese was laughing and smiling,” the onlooker told Australian reporters. “They seemed to have great chemistry.” “She was saying how much she loved his music,” says the insider. “They clearly shared a connection.”