Jennifer Lawrence wants to be a "rock star girlfriend."

A source told the US' OK! Magazine: "She really wants to look cool as the girlfriend of a rock God and has splashed out on a whole range of new edgy T-shirts and jeans so she looks the part backstage when Chris is performing. She's totally into the whole scene and loving her new life as the leading lady of a music legend. She's trying to lose her gawky image and keep her designer clothing for red carpet appearances."

However, it appears the 'Hunger Games' star doesn't really need to change up her look to fit in with her new beau as Chris' friends already approve of the beauty and believe she's a better match for him than his estranged wife Gwyneth Paltrow, whom he split from in March following 10 years of marriage.

A source said previously: "Although Jennifer is different from Gwyneth, both girls are earthy. They like to play and act silly at times. Chris is happy because he and Jennifer are on the same wavelength."

It's not just Chris' pals who have grown to like Jennifer as Gwyneth, who has daughter Apple, 10, and son Moses, eight, with Chris, also gets along with her.

An insider said two months ago: "Her take is, 'Hey, he could do worse.' She just wants him to be happy."