Spotify is the latest app to experiment with a vertical video feed, similar to the popular TikTok format. According to a new feature in an early test build for iPhone, a new Discover tab has been added to the app’s top page. It has a similar user interface to TikTok, with vertical music video clips that viewers can easily swipe through. It is unclear whether the function will be made available to the general public or whether it is just a test that will not be included in the main app.

In a statement, Spotify stated that the new feature had not been properly disclosed. “At Spotify, we routinely conduct a number of tests in an effort to improve our user experience,” a spokesperson said. “Some of those tests end up paving the way for our broader user experience and others serve only as an important learning. We don’t have any further news to share at this time.” TikTok’s vertical-scrolling video format has been often imitated since its debut in 2016, and its popularity has risen in recent years. Shorts is a YouTube experiment, Reels is an Instagram feature similar to Shorts, and Spotlight is a new Snapchat feature. Byte and Triller are two additional apps that share similar essential traits.