11 FEBRUARY 2009

She marked her 40th year with a huge bash at the weekend, and there are more birthday treats in store for Jennifer Aniston as she celebrates her milestone birthday on February 11 with her musician beau John Mayer.

Going one better than serenading his love with Happy Birthday, the singer/songwriter has apparently penned a track to mark Jen's big day. And that's not all. If reports are to be believed he's planning to pop the question to the Marley & Me star, who was presented with a birthday cake by chat show host Ellen DeGeneres during an appearance on her show last week.

While there's been no confirmation on whether John's song contains the words "Will you marry me?", in the past he has said: "I think I'd be pretty good at proposing... I'd get creative."

On Saturday the couple danced the night away at a star-studded party Jennifer threw at her Beverly Hills home. Guests included the birthday girl's Friends co-star Courteney Cox Arquette and her actor husband David Arquette, Tobey Maguire, singer Shania Twain and Tom Hanks and his other half Rita Wilson.

Photo: Warner Bros
The Marley & Me actress, pictured receiving a birthday treat on Ellen DeGeneres' chat show last week, will apparently be serenaded on her February 11 birthday by her musician beau. He's reported to have written a special track to celebrate her milestone year
Photo: Getty Images
There's also speculation that John, who has been dating the Friends actress off and on since April last year, will pop the question