It looks like Apple's online services are down, according to Down Detector.
Services like Apple Music, iCloud, Apple Maps, iTunes, App Store and more are all reportedly experiencing issues. The tracking website indicates that the issue started happening after 12:30pm EST.
Users trying to access those services will have to wait until servers go back up.
Apple's Support Twitter page has yet to tweet anything official, but checking the 'Tweets and replies' section there seem to be some users reporting the issues. Additionally, Apple's official support page indicates exactly which apps aren't functioning.
Bloomberg's Mark Gurman has also reported that Apple's corporate and retail internal systems are also down.
Source: Down Detector