Debbie Gibson, 51, is AGELESS in bikini as 80s star preps for concert to celebrate 35th anniversary of Out of the Blue

Debbie Gibson, 51, is AGELESS in bikini as 80s star preps for concert to celebrate 35th anniversary of Out of the Blue

DEBBIE Gibson looks ageless in a small white bikini on Instagram. The photo comes after the 80s star, now 51, announced a concert for the 35th anniversary of her album, Out of the Blue. Debbie post…