CLAMP in Wonderland

The first music video by Clamp "Clamp in Wonderland".... for anyone who likes Clamps music videos or anime.. Prepare for music video magic. :) 

both are short anime mash ups  

Both are crossovers between different anime. While Kyutai Panic Adventure Returns is shounen-centered (Dragon Ball, One Piece), CLAMP in Wonderland is crossover between anime made by CLAMP and is more like a music video. 

Both music videos showcase old anime art style featuring classic CLAMP characters. CLAMP in Wonderland has a more upbeat song and vibe while X²: Double X has a more mature air to it. 

Both are crossovers between different anime. While CLAMP in Wonderland features anime made by CLAMP and is more like a music video, Magice Quartet x Nisioisin is collaboration between Mahou shoujo Madoka Magica and Nisemonogatari and is more of a comedy. Both have short episodes. 

Both are crossovers between different anime. While CLAMP in Wonderland features anime made by CLAMP and is more like a music video, Mahou Shoujo Sonico Magica is more like a collaboration between Super Sonico and Mahou Shoujo Madoka Magica. both have short episodes.  

Both are short crossovers between lot of anime. While Kyutai Panic Adventure is shonen centered (Dragon Ball, One Piece, Astro Boy), CLAMP in Wonderland is simply mashup of lots of anime made by CLAMP (RG Veda, Tsubasa Chronicle, Magic Knight Rayearth...). Both have old style animation.