Taylor Lautner may not be willing to confirm a relationship with singer Taylor Swift, but he’s sure acting like a doting boyfriend. The New Moon star snuck into last weekend’s Jingle Ball concert in Los Angeles for her performance, going almost completely unnoticed, according to Hollyscoop.

“No one knew Taylor was there,” says a source. “It was obvious he didn’t want to take away from her special day. He was there to support her.”