While remixes of famous ringtones are hardly new, YouTube musician MetroGnome's delightfully infectious "iPhone" more than merits a watch. The song is made up of some of Apple's most recognizable sounds, including classic ringtones like "Marimba," "Opening," and "Xylophone." It even features a cameo from Apple's virtual assistant Siri. Make sure to watch out for the excellent guitar riffs that cap the three-minute video. On top of uploading his performance to YouTube, MetroGnome has also released downloadable versions of the catchy dance track for free.