Some of its playlists contain sets created exclusively for the company by Diplo -- he conjured up 120 curated tracks for the project -- the American DJ and producer who's just been named the most Shazamed artist of 2015. Others feature beat-matched seamless music, which means zero interruption if you want non-stop, all-night dancing. You can also slide the mood tuner to tell the service that you want slow, laid-back songs or fast dance tunes. The good news is that unlike Running, which took some time to reach Google's mobile platform, this feature's rolling out to both Android and iOS users right now, just in time for the holidays.

[Image credit: Rebecca van Ommen/Getty Images]