Canfield, who popped the question on stage, told Playbill.com via email, "I'm beyond thrilled that all the planning and preparation that went into the cabaret at 54 Below made for such a beautiful night. Reed had no idea that I had written him a song and that I was going to propose. I also surprised him with his mom flying in for the night. You could say I blindsided him in 'Survivor' talk. Haha! But the best part of the night was that he said 'YES!' I'm so excited for the future and getting to spend it with my best friend!" 

Watch the engagement below:

Concerts were to be held Jan. 27-28 at 9:30 PM, but the Jan. 27 show was canceled due to Winter Storm Juno. Special guests included Krysta Rodriguez (First Date, "Smash"), Elizabeth Judd (Bare, Spider-Man Turn Off the Dark), Tess Soltau (Far From Heaven, The Addams Family) and Lauren Zakrin (Rock of Ages, Legally Blonde).

In an exclusive interview with Playbill.com, Canfield talked about the show (as well as his casting in Broadway's Doctor Zhivago and his relationship with Kelly). On his relationship with Kelly, he said, "I did my best before I went on the show to just kind of come to grips with myself and be like, 'I want to be an honest individual,' and that's how I'm trying to live my life. I had only recently told my family about [my relationship with] Reed, so that was still really fresh, but it was a time where I was just letting everything down — letting all my walls down. [I thought], 'I need to be truthful with everyone.' I became truthful with my church. I'm a part of Hillsong NYC. I'm one of their choir directors. I also sing on their Worship team. They've been amazing as well. Nothing has changed there now that I'm completely out and with Reed. He sings in the choir as well. I found that being an honest person has actually come with a lot of benefits. People are more sincere with you, and you find out a lot more about other people when you become honest."

4 Below is located at 254 W. 54th Street. For more information and tickets, visit 54Below.com.