Making the most of the beautiful summertime sunshine, Katherine Heigl was spotted out and about in Hollywood, California yesterday afternoon (July 26).

Joined by her former “Grey’s Anatomy” costar T.R. Knight and his boyfriend Mark Cornelsen, the “27 Dresses” dame looked lovely in a white tank top with belted/cuffed jeans and brown flats.

The trio appeared to be celebrating a very successful opening weekend for Heigl’s new romantic comedy “The Ugly Truth” costarring Gerard Butler.

According to reports, Katherine’s flick brought in $27 million, just behind the Disney film “G-Force” with $32.3 million.