Lady Gaga to wear a dress of Lettuce?

Lady Gaga turned a lot of heads by donning a dress made entirely of meat, and now an animal rights group is asking her to give some equal time to veggies -- by wearing a frock made completely of lettuce.

The folks at the Indiana branch of PETA issued the singer a challenge, saying, "If she agrees, we'll make her a dress entirely of lettuce and held together by pins and threads. It will be a full-length gown, and we'll make sure it looks sexy."

Gaga would have to spend some time on the effort -- it would take about six hours to construct the dress, leaf by leaf, directly on her body.