'The Voice' season 14, episode 17 recap and performances
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"The Voice" season 14 continued with its Top 12 performances on Monday, as the dozen singers still eligible in the NBC singing competition brought out a fresh round of covers for judges Adam Levine, Alicia Keys, Blake Shelton and Kelly Clarkson (and America). Which artists wowed and which artists may be on the chopping block during Tuesday's Top 12 eliminations? Here are the highlights music fans need to know from Monday's episode:

1) D.R. King breaks our hearts

Where did Team Kelly's D.R. King come from? He was a big surprise on Monday with his heart-wrenching cover of "White Flag," which you can watch by playing the video above. D.R. has generally flown under the radar so far in "The Voice" season 14, getting eclipsed while other contestants have bigger numbers, but this was a whole other level for him and something special. Hopefully he can turn in more performances like this one and make himself a contender.

2) Jackie Verna's version of Avril Lavigne

Team Adam's Jackie Verna covered Avril Lavigne's "I'm With You" and there wasn't anything necessarily wrong with her performance, which you can check out by clicking the link above. It just wasn't the attention-grabbing kind of cover that audiences expect from "The Voice" live shows. Another issue? Hearing her perform, it was impossible not to think about when Avril Lavigne sang this song herself with eventual winner Cassadee Pope back in "The Voice" season 3. It's always hard when the audience has a performance from the original artist to compare your cover to.

3) Christiana Danielle gets overrun by the fog machine

It's become somewhat of a talking point that "The Voice" has a fog machine and can occasionally use it a bit too much. That was the case on Monday when Team Alicia's Christiana Danielle covered the ballad "Say Something" and the fog machine threatened to take over her performance. It's just fog, so it wasn't as if the stage was on fire or anything, but it was still a bit of a distraction for the audience watching at home. Hopefully that doesn't impact voting for Christiana, who did pretty well with a song that has also been heard on the show before. Unlike Jackie, though, no one is necessarily expecting Christiana to come anywhere near Christina Aguilera.

"The Voice" airs Mondays and Tuesdays at 8 p.m. on NBC, with the Top 10 revealed on Tuesday, April 24. "Voice" fans can get tickets to see Adam Levine and Maroon 5 live at the Sprint Center in Kansas City, Miss. now through AXS. Tickets start at just $46.50, and don't forget to check out the AXS Premium ticket options for even better seats; get your tickets now here.