Lindsay Looks to a Higher (Flower) Power

5/18/2008 2:42 PM PDT BY TMZ STAFF
Holy Ali MacGraw -- it's Lindsay Lohan!

The frequently-troubled actress returned from Europe this weekend and spent yesterday looking care-free -- and damn hot!!! -- with friends in the Pacific Palisades.

In Lindsay's world, there is no problem that can't be solved by wearing a bikini.