Just in time for Halloween and the "American Horror Story: Hotel" premiere, Todrick Hall has created the ultimate "Monster" mash for Lady Gaga fans.

In the style of his recent takes on Rihanna, Taylor Swift and Beyoncé, the star of MTV’s “Todrick” has just dropped "4 Gaga," a Lady Gaga mega-mashup worthy of "Applause."

In the clip, four versions of the YouTube sensation harmonize the highlights of Gaga's catalog so far -- blending Little Monster favorites like "Bad Romance" and "Telephone" with some choreography that makes us want to "Just Dance."

Check out "4 Gaga" below, and stop by the comments to let us know your favorite Gaga jam from the video. You can also catch new “Todrick” episodes every Monday at 10:30/9:30c!