Tint portion of icing rose, yellow, green, violet and orange. Heat in microwave at defrost setting (30% power) for 20-30 seconds; stir. Repeat until consistency of icing will pour. Tint remaining icing red. Set aside.
Insert lollipop sticks into bottom of heart cake.
Position cooled cakes on cooling grid placed over cookies sheet covered with parchment paper.
Cover back and front with poured icing. Place pops in refrigerator or freezer to set.
Use tip 1 and red icing to print messages and texting phrases.