Britney Spears said "I think I need to come out of the roof quite a bit more" after being photographed standing with her head through the sunroof of a Mercedes G-wagon as it travelled down a highway near Los Angeles.

The pop superstar, 44, was photographed standing through the moonroof of a black Mercedes SUV as it cruised along the busy 101 Freeway near Studio City.

Britney Spears dismissed headlines about her bizarre behavior on a Los Angeles highway this week, writing on social media, "Nothing is what it seems."