Saturday Sessions: Jeff Tweedy performs "A Robin or Wren"
Like many of us, Jeff Tweedy, the celebrated frontman for the band Wilco, has spent much of the year hanging around the house. But quarantine hasn't slowed down Tweedy's prolific writing. This month he released a book and, on Friday, a new solo album. He joins "CBS This Morning: Saturday" to perform "A Robin or Wren."