NOW 45Taylor Swift's "We Are Never Ever Getting Back Together" is the lone Hot 100 number one single featured on the 45th volume of the U. S. Now series, released in February 2013. Rihanna's "Diamonds" and Bruno Mars' "Locked Out of Heaven," the singles that held the top position during the two previous months, are not featured. Beyond "Never Ever," five other songs here, including Ke$ha's "Die Young," One Direction's "Live While We're Young," and Flo