The Who will close out their U.S. tour on Feb. 28 with a special intimate concert at the Theater at Madison Square Garden. Dubbed "Who Cares," the show will benefit their Teen Cancer America charity and Memorial Sloan-Kettering Cancer Center. Elvis Costello and the Imposters will serve as the opening act for the evening.

Teen Cancer America was founded by Roger Daltrey and Pete Townshend in November 2012 with the intention of improving the lives of people between the ages of 13 and 24 who have been stricken with cancer. This is accomplished by working with hospitals to improve facilities and develop programs used in the treatment of youth cancer patients.

Daltrey has long been associated with the U.K.'s Teenage Cancer Trust -- of which he is a Patron -- having thrown benefit concerts at the Royal Albert Hall for them for more than a decade. Back in August, Daltrey auctioned off an autographed shirt he wore on the band's 1976 tour.

The rock legends are no strangers to benefit concerts. In 1985 they reunited for a one-off performance at Live Aid. Four years later they performed 'Tommy' as a benefit for the Nordoff-Robbins music therapy foundation, and most recently appeared at the 12-12-12 Hurricane Sandy relief benefit.

Tickets for the show will go on sale Saturday (Feb. 2) at 10:00AM Eastern. For ticket information, which includes pre-sale and VIP packages, visit Ticketmaster's website.