A handful of New York City subway riders were treated to an acappella performance by none other than Michael Buble Thursday, according to the New York Daily News. Buble performed a song from his recently released album “To Be Love” with the acappella group Naturally 7 at the Lincoln Center subway station.

A subway train pulled up just as Buble and Naturally 7 started their performance of “Who’s Lovin’ You.” After wowing a small group of onlookers, the crooner turned to the camera and expressed his excitement at just having performed in the subway.

Dressed in a sharp-looking black suit and tie, Buble posed for photos and videos and told the camera, “this is the coolest thing ever,” adding that a subway performance is when “you know you’ve made it.”

The Daily News reports that Buble isn’t the first artist to hold an impromptu performance at a New York City subway station. Rocker Rick Springfield performed his mega hit, “Jessie’s Girl” at Manhattan’s Penn Station in October 2012. Though subway commuters in the Big Apple aren’t known for their friendliness, Springfield was able to break through their coldness and convince several to sing along. According to the Daily News, Springfield was actively promoting his latest album, “Song for the End of the World.”

Even some of the biggest names in rock n’ roll like giving impromptu performances. According to Fashion & Style, U2’s Bono joined Belgian-Congolese artist Baloji in an impromptu performance at this year’s Coachella.

So the next time you take the New York City subway, make sure you have your camera at the ready because you never know what famous artist is going to be performing just outside your train.

Are you a fan of Buble’s music? Would you buy one of his CD’s or download one of his songs? Is this a stunt to promote his new album? Should more artists give impromptu performances in public places? Share your thoughts in the comments section.