Sunny Days

Background
Sunny Day's is a tribute to the original Sesame Street theme song, also called "Sunny Day's". Blink-182 bassist Mark Hoppus, who delivers solo vocals on the track, developed the song's concept based on lyrics to the Sesame Street Theme Song, and how it brought him smiles during his time when he was just a kid. He dedicated this song not just to the fans of Sesame Street, but to people who want to feel happiness when they're dealing with depression. In the chorus, Hoppus notes the "It's a Magic Rollercoaster Ride not a Carpet Ride" with "The door will open real wide to happy people like you". The band premiered the song on May 1st, 2021.

Reception
Sunny Day's charted at Number #1 on the Billboard hot 100, and stayed there for twelve weeks. It would become the band's best selling single even before the Album was released. It charted at #5 on the Canadian Hot 100, #12 on the Aria Music Charts, and the UK Singles chart. In New Zealand, it charted at number 25 on the New Zealand hot 100.

Tom Breihan at Stereogum enjoyed the song, praising it as "Simple, but it all the right ways and it's got that great Travis Barker drum-thunder underneath those pinched, hopeless hooks".

Music Video
This music video takes place in two places. In the beginning it seems that Blink 182 are in a basement. They begin to play the song and the walls begin to shake. After that the walls fall and the band ends up in a club with screaming fans all around. They moves to a secluded area and the music stops. It begins again as a strobe light begins to flash. The song starts to end and the club changes to the front of a theater which says "Can you Tell Me How to get How To Get To Sesame Street". The song ends and Blink 182 pack their guitars up and drums up, turns around and notices Elmo and Big Bird waving at them.