Sea otters love to play, play, play, play, play and they also have to eat, eat, eat, eat, eat -- at least that's what people say -- so the Monterey Bay Aquarium is tapping Taylor Swift fans for help.

The Central Coast aquarium launched a fundraising campaign Thursday involving a re-release of one of its classic T-shirt designs to support its sea otter program and other marine conservation efforts after noticing a curious flood of $13 donations it could attribute only to Taylor Swift fans.

The Grammy-winning singer-songwriter is seen sporting a vintage 1993 Monterey Bay Aquarium shirt with sea otter art in "The Official Release Party of a Showgirl," her movie celebrating the release of her latest album, "The Life of a Showgirl." Swift's fiancé, Travis Kelce, a tight end with the Kansas City Chiefs, is a known sea otter fan, and the Monterey Bay Aquarium had previously invited the couple for a special visit.

"Swifties, you truly walk the talk," the aquarium said in a post on its website announcing the new campaign. "We tracked down the original artwork -- first printed in the 1990s -- and are bringing it back to say thank you, sustainably."

The limited-time fundraiser, which offers the new eco-conscious reprints of the shirt in adult and kids sizes to those who donate $65.13, hit its initial goal in a mere seven hours, according to an update posted Thursday by the aquarium. When this story was published Friday, the total was approaching $2.2 million and the shirts were available on back order only.

"Intentional or not, by putting our sea otter conservation work in the spotlight, this has brought a new era of support and awareness to the Aquarium's long history of ocean conservation," the Monterey Bay Aquarium said on its website, which also features some fun Swift and sea otter crossover facts.

In addition to debuting the music video for "The Fate of Ophelia," Swift's "Release Party" movie included behind-the-scenes footage and commentary from the artist about her songs. The 89-minute movie made $34 million at the box office over its one weekend in theaters.

Monterey Bay Aquarium reprints vintage T-shirt worn by Taylor Swift, raises millions for sea otters