It's no secret that Spotify and other audio streaming apps are constantly looking for ways to help artists connect with fans. Today, Spotify announced that it's acquiring CrowdAlbum, a company that builds a library of photos and videos from fans so that artists can gauge the reaction to live performances. The two companies are no strangers, teaming up on a Fan Insights feature for musicians and concert recommendations for listeners. Under the streaming service's roof, CrowdAlbum will continue to work on products for artists. In fact, it already lends a hand to over 1,000 performers and venues in the US, including Lil Wayne, Diplo and Fall Out Boy.