Setlist from setlist.fm, which might be off - its listing for the songs covered in "Where It's At" does not match the video I watched.
Jenny Lewis, who opened the show, as she did the night before in NYC, came out for their duet of "Girl Dreams." Beck also calls her back during the ending of "Where It's At."
[people and bands
Bass: Dwayne Moore
Bongo: Cecilia Della Peruti
Drums: Chris Coleman
Guitar (Acoustic): Beck Hansen, Cecilia Della Peruti, Jake Sinclair
Guitar (Electric): Beck Hansen, Cecilia Della Peruti, Jason Falkner
Harmonica: Beck Hansen
keyboards: Alex Lilly, Roger Joseph Manning Jr.
Keytar: Alex Lilly
Mandolin: Jake Sinclair
Opening Act: Jenny Lewis
Percussion: Alex Lilly, Cecilia Della Peruti, Roger Joseph Manning Jr.
Synthesizer: Dwayne Moore, Jason Falkner, Roger Joseph Manning Jr.
Tambourine: Alex Lilly, Beck Hansen, Jake Sinclair
Vocals: Beck Hansen, Jenny Lewis
Vocals (Background): Alex Lilly, Cecilia Della Peruti, Dwayne Moore, Jake Sinclair, Jason Falkner, Jenny Lewis, Roger Joseph Manning Jr.