There's nothing I like more than seeing Hollywood folk get together for a good cause. Last night in LA at the Rock a Little, Feed A Lot benefit concert [1], Courteney Cox [2] stayed on trend [3] in a purple long-sleeve minidress; Isla Fisher [4] kept it rad in a leather mini and tie-dye tee [5]; Katherine McPhee was rocker hotness in a vest and booties; Jenna Dewan showed off her metallic bold shoulders; and Christina Applegate [6] posed in an easy, pirate-inspired getup. They all look fresh in their own way; which look do you prefer?