You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who sang alvida from life in a metro?" whose answer is K.K..
Each document should contain about 30 words, and these documents should contain useful information.

Query: who sang alvida from life in a metro
Useful Output:

Doc 1: Watch the Alvida (From "Life in a Metro") music video by Pritam & KK on Apple Music.
Doc 2: Comments1.7K ; Life in a Metro all songs | Video Jukebox | O Meri Jaan | In Dino | Alvida | KK | Pritam. Sony Music India · 216K views ; ARBOVIRUS
Doc 3: Alvida (Life in A Metro) Sung by: KK (also by James) Music: Pritam chupke se kaheen dheeme paon se jaane kis tarah, kis ghadi aage badh gaye humse rahon mein
Doc 4: Alvida (From "Life in a Metro") song by KK & Pritam. Alvida (From "Life in a Metro"). Best of Bollywood: KK KK, Pritam 21 August 2007.
Doc 5: 75 likes, 4 comments - therawsinger99，March 31, 2025 : "ALVIDA - life in a metro || KK || pritam || Cover Song Tribute To Kk #kk #pritam