Our favorite online videos this week range from the cute to the downright weird. In keeping with the holiday spirit, we’ve got First Dog Bo Obama inspecting the White House Christmas decorations, rapper DMX singing “Rudolph the Red-Nosed Reindeer,” and Jimmy Fallon, Mariah Carey and The Roots teaming up for a spirited rendition of “All I Want For Christmas Is You.” But it’s not all about the tinsel. We’re also re-obsessed with Sesame Street‘s take on Boardwalk Empire, a patient pug teaching his feline sibling a lesson, and a mashup of the 50 best pop songs of 2012. Check out those videos and more below:

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Other Links From TVGuide.com

• Boy Meets World
• Sesame Street
• DMX
• Elizabeth Taylor
• Jimmy Fallon
• Lindsay Lohan
• Mariah Carey
• Danielle Fishel
• Nickelback
• The Roots
• Taylor Swift
• Adele
• Justin Bieber
• Boardwalk Empire
• Liz & Dick