Costa Allegra, ex-Annie Johnson was a cruise ship owned by the Italy-based Costa Crociere, one of many subsidiaries owned by Costa's parent company Carnival Corporation. She was built in 1969 by the Wärtsilä Turku Shipyard in Turku, Finland, as a container ship for the Sweden-based Rederi AB Nordstjernan. In 1986 she was sold to Regency Cruises with the intention of being converted into a cruise ship as Regent Moon, but she was laid up instead.