Festify - Festify is a free Spotify-powered app that lets your guests choose which music should be played...
RightGIF - Less noise, better GIFs. A better /giphy for Slack.
Twinjack - Stream Spotify music with anyone with just a link
Firesong - Giphy for Music in Slack w/ Emoji Search
Parallel - Listen to music with friends over Spotify at the same time
Slack Meme Bot - Spice up your team conversations with memes