Megan Fox apologises for dirty hair-look at MTV Movie Awards

'World's Sexiest Woman' Megan Fox has apologised for her dirty hair-look at the recent MTV Movie Awards in Los Angeles.

The Transformers star, who was given the sexy honour by FHM magazine, had thick gel slicking down her scalp while she sported a D&G strapless black and gold cocktail dress that was matched with strappy stilettos at the star-studded evening.

The 23-year-old later posted an apology at her Twitter account.

"Sorry if you didn't like my hair. Opinions are opinions," Fox News quoted her as saying.

Megan was further spotted looking bored at the annual show as she half-heartedly stamped the red carpet.

She later appeared distracted as she presented a world exclusive of the upcoming Transformers alongside director Michael Bay.