Dudes, what gives?

Twentysomething hunks Shia LaBeouf and Joe Jonas were two ships passing in the night -- er, day -- in West Hollywood on Tuesday.

Shaggy-haired and furry-faced LaBeouf, 25, headed to lunch at Cafe Med wearing a red t-shirt, jeans and shades.

Directly in the Transformers: Dark of the Moon's path in Sunset Plaza? Sexy singer Jonas, 21, wearing an inside-out "I Love Rock 'N Roll" t-shirt, jeans and shades. As photos attest LaBeouf and Jonas passed one another without a hello or nod of recognition.

No word yet on whether the two in-demand stars have ever met at any Hollywood functions.

Dating Hollywood stylist Karolyn Pho for several months, LaBeouf's next post-Transformers project is the indie film The Wettest County in the World. Jonas, who parted ways with Ashley Greene earlier this year, opens for Britney Spears on the European leg of her tour later this month.