Hanson, the American pop rock band from Tulsa, Oklahoma, known for their hit song "MMMBop," made a unique return to NPR's Tiny Desk concert - something they had never done before. The band originally performed a set in September, but then surprised everyone with a wintery encore the same day, featuring songs from their new holiday album "Finally It's Christmas." The concert showcased not only their musical talent but also included fun elements like frantic set decoration and even an intrusive snow machine.

Hanson, formed by brothers Isaac, Taylor, and Zac Hanson, rose to fame with the release of their debut album "Middle of Nowhere" in 1997, which featured the iconic "MMMBop." The band has since sold over 16 million records worldwide, earned three Grammy nominations, and continued to release music under their own label, 3CG Records. Their unique fusion of pop and rock elements has garnered them a dedicated fan base and multiple chart-topping singles in the US and the UK.