I definitely parsed the headline wrong at first! But c’mon, even if you’ve never heard of the band, the second sentence of the article links to their webpage…

Easy peasy. Instead of making payments to your credit card, transfer the amount to a high yield savings account instead. Then use that savings account to pay your CC once per month. (Savings accounts typically have a limit on debits, but you can usually make as many deposits as you want.)

Enjoy the cashback AND a few bucks in interest AND having your checking account accurately reflect your “real” money at all times.