Glen Campbell's poignant song 'I'm Not Gonna Miss You' has received an Oscar nomination in the Original Song category.

Other Original Song nominees are John Legend's 'Glory' (from 'Selma'); Tegan and Sara and the Lonely Island's 'Everything is Awesome' (from 'The Lego Movie'); Adam Levine's 'Lost Stars' (from 'Begin Again') and Rita Ora's 'Grateful' (from 'Beyond the Lights').

'I'm Not Gonna Miss You' is from the documentary 'Glen Campbell ... I'll Be Me,' which chronicles the singer's life, farewell tour and experience with Alzheimer's, which he was diagnosed with in 2011. He wrote 'I'm Not Gonna Miss You' with songwriter and producer Julian Raymond, recording the tune as a farewell to his legendary career.

The documentary gives an intimate, honest and at times heartbreaking look at Campbell's struggle with his diagnosis. The film's soundtrack includes five of Campbell's songs: 'I'm Not Gonna Miss You,' 'Wichita Lineman,' 'A Better Place,' 'Home Again' and 'Gentle on My Mind.'

'I'm Not Gonna Miss You' also received two Grammy nominations this year. Cambell released a music video for the song in October.