Get ready to rock when this 21 shot finale cake lights up the night sky.  With a duration exceeding 30 seconds, it begins with 5 single shots of purple stars changing to red lace,  transitioning to a triple volley of green stars to a sea of red lace!  Rinse and repeat with 5 more shots of blue stars changing to red lace with a tri-volley of yellow burst to red sizzle!  This sets up the finale rapidly firing 5 shots of multicolored stars to a blanket of red lace!