There are multiple artists under the name Clap! Clap!
1) Clap! Clap! is the moniker of bass producer Digi G'Alessio (a.k.a. Cristiano Crisci). As Clap! Clap! he has released two EPs so far, Gwidingwi Dema (2013) and Tambacounda (2014).
2) Amongst the wake of a clap-less music scene, it was San Marcos where the conception of Clap!Clap! took place. Armed with 10 members, including a clap choir, and more percussion instruments than you can shake a clave stick at, Clap!Clap! strives to bring clapping back into the music scene. Read more on Last.fm
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