Watch: James Bay and Alicia Keys break hearts with 'The Voice' duet

James Bay and Alicia Keys had one of the best performances during Tuesday's "The Voice" episode, joining forces for a stellar version of "Us" in the NBC singing competition's season finale. You can watch their impressive duet by playing the video above.

"Us" is the latest single from Bay's recently released album Electric Light, which dropped on May 18; you can listen to the original version by watching the single's music video. The song itself is great, but adding Keys' velvety vocals and her talented piano playing to it makes it utterly captivating. She elevates the song by adding her own sound to it, and she and Bay make an excellent duo on stage, particularly after Keys steps away from the piano to sing with Bay as if there's no one else in the room but the two of them. It's a fantastic transformation of a song that all music fans should watch.

As of Monday night, Electric Light was sitting at No. 17 on the iTunes Top Albums Chart. Bay's latest performance of "Us" (he's also performed the song on "Jimmy Kimmel Live" and NBC's own "Late Night With Seth Meyers") should draw more attention not only to the album, but to his corresponding Electric Light Tour, which music fans can get tickets to now through AXS.

Bay is touring throughout the United Kingdom and Europe in support of his new album, and will bring his tour to the United States in September for two months. AXS has your tickets to several stops on the tour, including Bay's concert at Detroit's Masonic Temple Theatre (Sept. 29), his visit to Salt Lake City's The Union (Oct. 05) and the tour's penultimate show at Seattle's Paramount Theatre (Oct. 14). While Alicia Keys won't be joining him on tour, their performance on "The Voice" proves that Bay is well worth seeing live this fall. He can still melt an audience with the best of them.

Electric Light is available on iTunes. Music fans can get tickets to see James Bay live this fall on his Electric Light Tour through AXS. Below are James Bay's upcoming tour dates, with tickets to select shows on sale now through AXS:

Sept. 13 - Atlanta, GA - Coca-Cola Roxy Theatre
Sept. 14 - Nashville, TN - Ascend Amphitheater
Sept. 15 - Durham, NC - Durham Performing Arts Center
Sept. 18 - New York, NY - Beacon Theatre
Sept. 19 - New York, NY - Beacon Theatre
Sept. 20 - Washington, DC - The Anthem
Sept. 25 - Philadelphia, PA - Festival Pier at Penn's Landing
Sept. 26 - Boston, MA - Blue Hills Bank Pavilion
Sept. 28 - Toronto, ON, Canada - Woodbine Park
Sept. 29 - Detroit, MI - Masonic Temple Theatre (Click here for tickets)
Oct. 01 - Chicago, IL - Aragon Ballroom
Oct. 02 - Minneapolis, MN - State Theatre
Oct. 04 - Denver, CO - Fillmore Auditorium
Oct. 05 - Salt Lake City, UT - The Union (Click here for tickets)
Oct. 07 - Los Angeles, CA - Greek Theatre
Oct. 11 - Berkeley, CA - The Greek Theatre
Oct. 13 - Vancouver, BC, Canada - Doug Mitchell Thunderbird Sports Centre
Oct. 14 - Seattle, WA - Paramount Theatre (Click here for tickets)
Oct. 15 - Portland, OR - Moda Center

For more on James Bay, visit his artist page at AXS.