Megan Fox In Celebrities All Bikini

Megan Fox… in Transformers, of course.

“I would like for all you S4TE fans to welcome Rosie Huntington-Whiteley to the world of Transformers. As some of you might know, she’s the new female lead in Transformers 3.”

… says director Michael Bay.

What do you say? Is this full-lipped British hottie perfect for the ‘demanding’ must-look-hotrole?

And on another note, Megan has lost a lot of weight since the picture above! See her skinnier figure in a bikini here!

And more Rosie after the jump!