Blackpink's Lisa Shows Off Fit Physique in String Bikini

Blackpink's Lisa could melt "Ice Cream" with her latest hot look ... an itty-bitty string bikini by Louis Vuitton.

Check it out ... the Thai performer, who is a longtime member of the K-Pop girl group, dons a teeny tiny red-and-white bikini covered in Louis Vuitton's signature monogram in a series of new photos posted to Instagram.