Helium, Sleater-Kinney Members Do Commercials

Mary Timony, Carrie Brownstein are in television ads for Priceline.com.

Singer/guitarists Mary Timony of Helium and Carrie

Brownstein of Sleater-Kinney are shown in actor William

Shatner's backing band in a series of commercials promoting the online

buying service Priceline.com. The pair, who collaborated on songs last

year, are shown performing covers of such material as Cheap

Trick's "I Want You to Want Me" and Lynyrd Skynyrd's "Free

Bird"; studio musicians were used to record the tracks prior to the

commercial taping, according to a Matador Records publicist. The spots

are running on several networks, including CNN and A&E. Timony will

release her solo album, Mountains, March 7.