Aniston's beau gifts her song on birthday

London, Feb 11 (IANS) Actress Jennifer Aniston's musician boyfriend John Mayer has written a song for her as her 40th birthday gift.

Mirror.co.uk reports that the rock star has penned a special track for her to celebrate her 40th milestone and he was to debut it at her birthday party later Wednesday night.

The "Marley and Me" star has already had a big birthday bash over the weekend at her Beverly Hills home.

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Marley & Me