Hanson boosted relief efforts following Japan's earthquake and tsunami disasters by staging a 12-hour telethon in Texas on Saturday.
The trio teamed up with organizers behind the South By Southwest festival in Austin for the telethon, which featured performances and appearances from acts including R.E.M. rocker Michael Stipe, The Boxer Rebellion, Bowling For Soup and The Parlotones, among others.
The gig, which was streamed online and coincided with the SXSW festival's close, saw performers urging viewers to donate to the American Red Cross and aid victims in Japan.
Songs recorded at the event will later be sold as a part of a benefit project.
The earthquake and resulting tsunami earlier this month left countless dead and homeless in Japan.
Stay tuned for our exclusive interview with Hanson.
(Photo: James Sullivan)