Built for Celebrity Cruises at the Meyer Werft shipyard in Papenburg, Germany, she was launched on 11 July 1997, and was christened and entered service as MV Mercury on 27 October 1997.

[2] Her sister ship Marella Explorer is the former MV Galaxy, also previously operated by Celebrity Cruises.

[4][5] While cruising from Charleston, South Carolina to the eastern Caribbean in February 2010, the ship was struck with a major outbreak of norovirus, affecting nearly 500 people on board, out of a total of just over 1,800.

[7] In March 2018 TUI Cruises announced that Mein Schiff 2 would remain in the fleet and sail under a new name.

The ship then underwent a refit at Navantia in Cadiz and was renamed Marella Voyager.