Musical pop-up Valentine's Day greeting card with light features Snoopy, Woodstock and friends with a cart full of heart-shaped balloons paired with a sweet message and a fun surprise: the hearts light up as the "Linus and Lucy" song plays. Includes a removable mini card for your personal message and signature. Press button to activate music and light features. Pull down on sides of the pop-up card and push up base to pop it open and lock into place for display—no assembly required. Die-cut details.