Maroon 5 star pens song about Diaz

Adam Levine is set to write a song about Cameron Diaz.

The Maroon 5 singer - who has been photographed enjoying intimate dates with the blonde actress - thinks his best songs are based on his girlfriends.

The 30-year-old musician said: "I tend to be inspired by and write about the relationship I'm in.

"Cameron and I have known each other for a while and have been hanging out."

If Levine pens a track about Cameron, it won't be the first time he has written about a lover.

Maroon 5's hit album 'Songs About Jane', which includes the songs 'She Will Be Loved' and 'Sunday Morning', was written about his ex-girlfriend.

Cameron - who split from British model Paul Sculfor earlier this year - recently revealed she is scared of settling down and getting married.

The 36-year-old actress said: "I'm a commitment-phobe! It's about being in the right position, the right place and the right time. I don't want to get married. I just want to catch the bouquet - I have a collection of bouquets!"

Last month, it was reported Cameron had introduced Adam to her mother over lunch.