The Voice season 13, episode 2 recap and performances

"The Voice" season 13 continued on Tuesday night with another hour of blind auditions, and this week featured a bombshell even bigger than anything seen in Monday's season premiere. Here's what music fans learned from the second group of contestants who performed for coaches Adam Levine, Blake Shelton, Jennifer Hudson and Miley Cyrus on the NBC singing competition:

1) Nicki Minaj's former backup singer comes to "The Voice"

Keisha Renee was the only "The Voice" contestant to turn all four chairs on Tuesday. Yet the 30-year-old is used to the spotlight: as Just Jared reported after her cover of "I Can't Stop Loving You" aired, Renee was previously a backup singer for Nicki Minaj. And her association with the pop star isn't the only reason why Renee's blind audition is notable. As longtime "Voice" viewers know, the series has become a stopping point for numerous backup singers, and those backup singers have traditionally done very well on the show. That includes two winners: season 2's Jermaine Paul (who had been a backup singer for future judge Alicia Keys), and season 5's Tessanne Chin (who had worked with Jimmy Cliff). So Renee's added experience makes her an automatic favorite in season 13.

2) It's not a young person's game

It's no secret that "The Voice" has skewed younger and younger as the seasons have gone on, with the network even dropping the show's minimum age requirement to 13 last year to allow more teenagers onto the program. But that doesn't mean older performers can't find their place. Look no further than 40-year-old Red Marlow, who found himself a place on Team Blake with his cover of "Swingin." While it's fun to discover new talent and see the first-timers get their shot at stardom, it's also important not to forget that "The Voice" started as a show that gave second and third chances to artists who'd never gotten their fair shake, and that those who might be trying to get started or restarted later on can be just as compelling to watch.

3) Season 12 winner Chris Blue makes a reappearance

He didn't perform on Tuesday, but "The Voice" fans got their first post-show glimpse of season 12 winner Chris Blue when he appeared in a Target commercial that was also posted to the show's YouTube channel. If there's one common criticism of "The Voice" it's that the winners tend to drop off the radar faster than anyone would like, so it's a good sign that NBC made a point of making sure fans saw Blue's next move relatively quickly, even if it was just a 30-second ad. Hopefully he'll find his way back to the stage for the season 13 playoffs.

"The Voice" airs Mondays and Tuesdays at 8 p.m. on NBC.