Tonight marked the first live show for 'The Voice,' and Christina Aguilera summed it up best, saying that we already know they can sing; now we need to see if they can perform.

The show opened with the coaches singing a medley of Queen songs, including 'Bohemian Rhapsody,' 'We Will Rock You' and 'We Are the Champions.' Pop, rock, country and urban pop collided when the singers paired up. Of course Aguilera brought drama and histrionics (in a not-so-flattering pair of leather shorts), while Adam Levine shredded through a ripping guitar solo that caused him to become a trending topic on Twitter.

Blake Shelton compared coaching his team members to having kids and said it’s emotionally exhausting, since he doesn't want to lose any of them. Aguilera said she wanted her team members to lose themselves in their performances and, most of all, to have fun, since this is entertainment.

Tonight, Aguilera's and Shelton's teams performed, and each of them performed with their team. There was lots of nippy banter between the coaches when commenting on each other's team members. Aguilera has no male voices on her team, and she is happy about that. Her goal for the live shows? "I already know they have the voices; but now I want to see it all come together a package," she said.

Aguilera performed 'Lady Marmalade' with her all-female crew, which she is clearly in love with. There was plenty of estrogen flowing on the stage with Xtina and her ladies when they sang the nonsensical lyrics "Giuchie, Giuchie, ya ya dada," ... whatever they mean. It was her challenge to the boys teams to bring it.

Shelton performed 'This Love,' by Levine's band Maroon 5. "You're so much bigger than everyone else, Blake," the pleased Levine joked. It was a the perfect vehicle for Shelton's team to show off their individual strengths and their unity.

Now, as for the contestants' performances:

Raquel Castro: She looked like hot, young Gloria Estefan when she was in her prime, as she sashayed across the stage singing 'Blow' by Kesha. She impressed all the judges with the way she sang and danced.

Jared Blake: He ripped through the moody rock song 'Use Somebody,' which for tonight, positioned the country-rock line straddler as a rock dude. He hasn't made up his mind whether he wants to align with rock and country and he has a few weeks to decide.

Beverly McLellan: This bold 'n' bald dynamo sang Melissa Etheridge's 'Am I the Only One' in her red kilt with her neck tattoos, looking sexy and hot, so said Shelton. She was woman and we heard her roar, despite the fact that she was sacked with a cold.

Dia Frampton: The unassuming Frampton played piano for Kanye West's 'Heartless,' which allowed her to alleviate some of her shyness. Her voice has so many tones to it, from breathy to high, that she infused the song with warmth and owned it. She could be the quiet, dark horse, as she turned in tonight's best work.

Xenia: Her voice is super unique, even if Jessie J's 'Price Tag' was a little too confident for this shy, sweet and innocent girl with an inimitable voice. She didn't look comfortable onstage or making hand gestures, but she sounded superbly stellar.

Lily Elise: She tore through Fergie's 'Big Girls Don't Cry,' proving to be more engaging when she sang solo, without the background dancers, who were referred to as "mimes" by Shelton. Aguilera mentioned earlier that Elise can be a little cold and distant with her vibe. But her vulnerability did show in the form of emotion.

Patrick Thomas: The classy country boy sang Lee Ann Womack's 'I Hope You Dance' with emotion and feeling, giving it his absolute all. He also looked like a bona fide country singer, and looked ready to shed a tear as he sang. Cee Lo Green said he could take it all. Aguilera said something about getting his pants off.

Frenchie Davis: The 'American Idol' alum sang David Guetta/Kelly Rowland's 'When Love Takes Over.' It made Levine love a song he was indifferent to. Frenchie doesn't give up no matter what and she was labeled as the singer with the most powerful voice.

Watch 'The Voice' Coaches Open Week 7 With a Queen Medley