Victoria Justice, Elizabeth Gillies, and Snoop Dogg are all familiar names to you, we’re sure… but do you remember when they guest-starred on Big Time Rush?! Oh, and that’s not all: There was Tom Kenny as Patchy the Pirate, and even Jordin Sparks performing “Count On You” alongside Kendall, Logan, Carlos, and James! Let’s take
Sam
Austin Butler, David Archuleta, and The Plain White T’s are all familiar names to you, we’re sure… but do you remember when they guest-starred on iCarly?! Oh, and that’s not all: There was Victoria Justice as BOTH Victorious’ Tori Vega and Shelby Marx, Jane Lynch as Sam’s mom, and even One Direction performing “What Makes