As we all know, Dianna Agron (Quinn) is a first-class performer who can knock the socks off of any solo! This gal has been stealing the spotlight ever since she cheerio-d her way onto Glee, and her blog, You, Me & Charlie, just produced its first ever concert!

You, Me & Charlie's debut show went down on Monday, February 25 at The Echoplex in Los Angeles, and featured performances from Dianna's favorite bands: A House For Lions, Max and the Moon, The Peach Kings, and The Cerny Brothers.

"It’s no secret how much we love AHFL, so it was a no brainer to team with the guys during their LA residency," Dianna wrote on YM&C's website.

The show was a total blast, and Dianna had all kinds of surprises up her couture sleeves like a photobooth for snapping pictures, fabulous DJs, and a special surprise guest! "All we can say is, you never know whooo will show up and hop on that stage! ; )))" Dianna wrote in anticipation of the concert.

So, who was You, Me & Charlie's surprise guest? None other than Dianna Agron herself, who hopped up on stage like a total pro and serenaded the audience while A House For Lions accompanied her! Their song of choice? "What's Love Got To Do With It" by Tina Turner, aka the best 80s hit ever!

Credit: YouTube Photo: Watch: Dianna Agron Sings at February 2013 Concert (VIDEO)

The Glee star wore a gorgeous, floor-length floral dress for her performance — a look that fits in perfectly with her feminine, boho sense of style. Di wore her blonde hair pulled back, and accessorized her outfit with a chunky bracelet.

You can check out a picture from Dianna's performance here (loving that gorgeous floral dress, by the way!), and watch a video of the full song. Wow, Dianna's voice is beyond amazing!

Source: Instagram / YouTube