"Hello" is a song performed by former Pink Floyd

Pink Floyd

Pink Floyd were an English rock band that achieved worldwide success with their progressive and psychedelic rock music. Their work is marked by the use of philosophical lyrics, sonic experimentation, innovative album art, and elaborate live shows. Pink Floyd are one of the most commercially...

 member Roger Waters

Roger Waters

George Roger Waters is an English musician, singer-songwriter and composer. He was a founding member of the progressive rock band Pink Floyd, serving as bassist and co-lead vocalist. Following the departure of bandmate Syd Barrett in 1968, Waters became the band's lyricist, principal songwriter...

. The song was created as a collaborative effort with Howard Shore

Howard Shore

Howard Leslie Shore is a Canadian composer, notable for his film scores. He has composed the scores for over 80 films, most notably the scores for The Lord of the Rings film trilogy, for which he won three Academy Awards. He is also a consistent collaborator with director David Cronenberg,...

 for the 2007 film The Last Mimzy

The Last Mimzy

The Last Mimzy is a 2007 science fiction family film directed by Bob Shaye and loosely adapted from the acclaimed 1943 science fiction short story "Mimsy Were the Borogoves" by Lewis Padgett...

. As Waters stated, "I think together we've come up with a song that captures the themes of the movie - the clash between humanity's best and worst instincts, and how a child's innocence can win the day". The song's music video

Music video

A music video or song video is a short film integrating a song and imagery, produced for promotional or artistic purposes. Modern music videos are primarily made and used as a marketing device intended to promote the sale of music recordings...

 features images from the film as well as recording sessions with Waters, Shore, producer James Guthrie

James Guthrie (record producer)

James K.A. Guthrie is a British recording engineer and record producer best known for his work with the progressive rock band Pink Floyd, having served as a producer and engineer for the band since 1978...

 and actress Rhiannon Leigh Wryn

Rhiannon Leigh Wryn

Rhiannon Leigh Wryn is an American child actress. Her biggest role to date is in the 2007 science fiction film The Last Mimzy, where she plays Emma Wilder, one of the main characters.-Life and career:...

. Waters performed vocals and the bass for the song.

The song itself contains references to the Pink Floyd albums The Wall

The Wall

The Wall is the eleventh studio album by English progressive rock group Pink Floyd. Released as a double album on 30 November 1979, it was subsequently performed live with elaborate theatrical effects, and adapted into a feature film, Pink Floyd—The Wall.As with the band's previous three...

and The Dark Side of the Moon

The Dark Side of the Moon

The Dark Side of the Moon is the eighth studio album by English progressive rock band Pink Floyd, released in March 1973. It built on ideas explored in the band's earlier recordings and live shows, but lacks the extended instrumental excursions that characterised their work following the departure...

, as well as Waters' solo album Radio KAOS

Radio Kaos

Radio Kaos is Mexican Rock band formed in Los Angeles in 1992. The band currently features Claudio Pérez , David Pérez . The release of their first album Botas Negras under EMI Capitol was a success in Mexico...

.