A still from Adele's 2015 "When We Were Young" music video.

The song follows fellow ballad, and monster smash, "Hello."

It's official, according to a source at Columbia Records: "When We Were Young" is the second single from Adele's album 25.

The soaring, wistful ballad has clearly been a fan favorite since the album's arrival, and it bolts 34-23 in its second week on the Adult Pop Songs airplay chart (dated Dec. 26). It has sold 150,000 downloads to-date, according to Nielsen Music, making it the second-best-selling song from 25; monster lead single "Hello," atop the Billboard Hot 100 for seven weeks so far, has sold 3.1 million. (The third-top-selling song from 25? the midtempo "Water Under the Bridge," at 104,000.)

The profile of "Young" has also been raised by its official live performance video, recorded at London's The Church Studios.

"Young" debuted at No. 22 on the Hot 100 two weeks ago, starting with 3.7 million U.S. streams and 101,000 downloads sold that week.

With airplay promotion now in the mix, and 25 atop the Billboard 200 albums chart for a third week, "Young" could be primed to scale the Hot 100 like its predecessor 25 smash "Hello."