So this is part one of the concert. Things start to happen in this chapter and next chapter they're all acted on. The lyrics below are from Taking Back Sunday - My Blue Heaven. I do not own TBS or Big Time Rush.

Kendall: 'meet me in the lobby in 10?'
Liz: 'no prob'

Liz was standing in the elevator in her skinny jeans and a pair of black Chuck Taylor's and had changed her shirt to her 'favorite concert v-neck'. The elevator door opened and she saw Kendall sitting in one of the lobby chairs talking to Camille. Camille noticed Liz first and smiled in her direction and Liz answered with a wave. Kendall turned around to see Liz and grinned hugely, Liz blushed.
"Hey," Kendall said, "nice shirt...again" He chuckled and raised an eyebrow.
"It's got signatures from all the bands I've seen in concert." Liz smiled.
"Tell me more in the car, we don't wanna be late." Kendall interjected. "We gotta get there for soundcheck."
"Alright," Liz replied. "And Camille, I will text you immediately when I'm home." She said to the brunette watching from the lobby couch.

On the way to the venue Liz explained her unusual shirt to Kendall. Explaining how signatures had been accumulated from past shows; remembering back to her first concert seeing Incubus, when she didn't have anything for them to sign so just had them sign her shirt. When they arrived at the small club Kendall opened the door for Liz, "That's really clever and awesome." He smiled.
"Thanks, I hope I could get all of TBS to sign it, too." Liz replied.
The pair made their way towards the front of the pit as the crew was busy setting up the drum kit and guitar stands. There were a few other concert-goers inside the club but they stayed off to the sides, close to the merch tables or bar area. While the two had time to kill they chatted about everything from different concert experiences to their favorite TBS songs and albums. "On three we'll each say our favorite song." Kendall stated. "One, two, three...'A Decade Under the Influence'!" Kendall blurted. "'Timberwolves at New Jersey'!" Liz practically shouted. She blushed and looked down.
"'Decade' is too mainstream." She laughed.
"It may be, but I still like it so hush." Kendall said and stuck his tounge out.

A few minutes later and the band started to come on stage for soundcheck. "Oh my God, it's really them!" Liz gasped and smiled wide at Kendall. He just smiled back at her.
"Hey guys, thanks for coming out." Adam Lazzara, the lead singer, started, "The full show will start in like less than an hour or some shit. Wanna hear a song now?" He asked.
The small crowd of people cheered yet no one spoke.
"Do 'My Blue Heaven'!" Liz shouted towards the stage.
"Alright, you heard the lady, fellas." Adam turned to the band.
"Good choice." Kendall whispered in Liz's ear.
Liz swayed back and forth to the music and mouthed the words as Kendall stared at her in awe. He suddenly felt the same urge to hold her hand as before. Without thinking twice he reached out his hand and laced his fingers with hers. She looked down to their hands then up to Kendall and smiled. She gave him a little squeeze. He leaned down into her ear and sang along with the words,
"Is this all too familiar?
Does it happen all the time?
I'm just asking you to hear me
Could you please, just once, just hear me?
More than anything you wanted to be right
Still it's you, you,
It's you I can't deny."
He then placed a gentle kiss on her cheek and looked back at the stage as the song finished. Liz froze and looked up at Kendall as he continued to stare at the stage. Shock overwhelmed her although she liked the gentle feeling of his lips on her skin. Her concentration was broken when a security member walked up to her and Kendall and handed them two backstage passes. "Lucky kids. Stick around after the show and come to the side of the stage for a meet-and-greet. Make sure you have the passes presented. Enjoy the show." And he walked away.
"This is crazy!" Kendall laughed and gave Liz's hand a gentle squeeze.
Liz nodded and repeated the sentence in her head, "this is crazy!"

Yeah, so not the best chapter ever but it's understandable. I hope you enjoyed it, new chapter soon I promise and it will be a continuation of the concert. Read and Review! Comments are welcome with suggestions or ideas for anything. Thanks for reading guys! :)