Spoiler! First Listen! Glee's Blaine and Artie Sing a Mashup of Britney Spears' "Boys" and Justin Bieber's "Boyfriend" in Season 4, Episode 2: "Britney 2.0" Tweet September 5, 2012 at 07:52PM EDT by Beth Douglass Related: Glee, Music , Glee Spoilers , Kevin McHale , Darren Criss , Artie Abrams , Blaine , Season 4 Episode 2 Credit: YouTube Blaine (Darren Criss) and Artie (Kevin McHale) channel their inner boy banders. We swoon. Instantly. Check out this first listen of the guys' cheesy-but-brilliant mashup of Britney Spears' “Boys” and Justin Bieber’s “Boyfriend” from Glee’s second Britney Spears tribute, Season 4, Episode 2: “Britney 2.0.” Can’t get enough Gleetastic goodness? Like us on Facebook or follow us on Twitter!