The foursome gathered this week on a sound stage in L.A. to shoot a commercial for the new Band Hero video game directed by Brett Ratner. Staying true to the style of original Guitar Hero commercials, the group all donned socks, boxers and button down shirts just like the classic scene from Cruise's 1983 hit.
Swift also appears in the ad wearing a slinky silver dress while singing the song "Love Story." The country star later gets into her Cruise outfit to do her version of his "rock-n-roll" slide. In fact, Swift walked away with a few bruises after the shoot, according to a set source.
On another day when she wasn't required on set, Swift stopped by to watch the guys film, and the boys ended up a bit of competition over .... underwear. They playfully raided the style department to try on ridiculous choices of boxer shorts to liven up the early morning shoot.
Barker's kids were also on set playing, but were star struck when Swift walked through the door, says the source. The country star took time out to play Band Hero with Barker's tots – and even gave them lessons on how to play guitar Band Hero style.
The new Band Hero game will be released Nov. 3.
Kevin Winter / WireImage