Macross Frontier: Itsuwari no Utahime

Half retelling of the original Frontier series, half new story. Conspiracies arise within the Frontier government when Sheryl Nome arrives to the colonial fleet for her concert and is soon marked as a spy for Galaxy while childhood friends, Alto Saotome and Ranka Lee both try to achieve their dreams as the battle between Frontier and the Vajra draws closer. (myanimelist.net)