Spencer Tweedy, son of Wilco frontman Jeff, has probably watched his dad perform on TV at least a handful of times. Last night, Jeff was on TV again, and Spencer was up there with him. The two Tweedys have formed the new band Tweedy together, and their Sukierae, their first album as a unit, is out in a couple of months. Last night, Jeff and Spencer performed on The Tonight Show together, doing the breezy, strummy midtempo track “Summer Noon,” with members of Lucius backing them up. Watch the performance below.

Sukierae is out 9/23 on Wilco’s dBpm label.