Soul superstar Stevie Wonder gave the latest American Idol wannabes some helpful hints on this week's (14MAR06) show when they tackled his classics, including SIGNED, SEALED, DELIVERED and LATELY. The blind singer joined the pop hopefuls in the studio to help them master his tunes before belting them out live on TV last night. However, his input didn't help singer Melissa Mcghee, who forgot the words to Lately in rehearsals and then did the same thing during the live TV contest.