@xtina on Twitter

Proving she might the coolest celeb ever, Christina Aguilera paid it forward in a big way over the weekend.

The new GRAMMY winner wrote on Twitter, "Coffee on me for the next hour!" telling fans to meet her at a Starbucks in Rockefeller Center in New York City. The big-hearted Voice star then bought coffee for every customer while autographing cups and taking pictures with fans. Check out a fan recorded video from Instagram below:

The news comes after an awesome week for Xtina, who made the world crooon a collective "awwww" when the she shared the first photos of her adorable new daughter Summer Rain on the cover of People magazine. 

Plus, Xtina absolutely killed it over the weekend with her opening performance at the 2015 NBA All-Star Game. She performed a spectacular tribute to the Empire State with a medley performance featuring classic NYC-centric songs like "New York, New York," "On Broadway," "Empire State of Mind" and more. She even brought out Nas to sing a snippet of "N.Y. State of Mind," ending it all with a huge belting note. Watch that below: