British rock band Coldplay's 2015 album "A Head Full of Dreams" might just be their last album ever, and, because of that, the band has left no stone unturned to promote it. An elaborate tour, well-directed music videos, kaleidoscopic artwork and live promotions — Coldplay has given the album their all.

As a part of the promotional activities, the band released a music video on May 16 for "Up & Up," the last track of the album. Directed by Vania Heymann and Gal Muggia, the video depicts surrealistic visuals that project a montage of childlike adventures.

It has cars racing on Saturn's rings, eagles adopting an underwater habitat, popcorn erupting from volcanoes, swimmers flaunting their strokes in a teapot, a Titan-sized Noel Gallagher playing a guitar solo on the clouds and a King Kong-sized Chris Martin mistaking mountains for cushions and striding across difficult landscapes as if they do not pose any problems. Overall, the video displays a bagful of positivity and hope, just like the entire "A Head Full of Dreams" album.

Sonically, "Up & Up" is a departure from the mainstream pop rock sound of the rest of "A Head Full of Dreams." Although it has a poppy feel in terms of the beat structure, it is the guitar work and bass playing that make the difference and give it an almost indie rock sound. Noel Gallagher's soulful guitar solo truly stands out in this song. In fact, it might just remind you of Coldplay's sound of the early 2000s.

Coldplay — Chris Martin on vocals, Jonny Buckland on guitar, Guy Berryman on bass and Will Champion on percussions — will embark on a worldwide tour starting with a concert on May 24 in France. (See the full schedule here.)