Heart Throb is a pegasus pony that first appeared in Year 3 of the My Little Pony line. She's pink with dark pink hair and has blue eyes. Her symbol is four pink hearts with glittery silver wings.
Heart Throb was available as both an adult and baby pony. The baby pony version came out in Year 4 and had Beddy Bye Eyes that opened and closed. Baby Heart Throb's symbol was three hearts, they did not have glitter or wings like the mommy pony.
There was also a So Soft version of Heart Throb released in Year 4.