This is a 1985 Madonna Hostess chips Rip Into Rock Sticker series still Sealed In its original Cello Wrapper from the chip bag, Never opened , this was a Canada Issue only.

Is this her Rookie Card/Sticker? Definitely its same year. The 1985 panini sticker is widely considered her Rookie Issue but this was issued in the same year but in Canada only, very scarce to find these today.