Eminem, often called 'Slim Shady,' is known for his technical lyrical ability and speed. In 2013, he released the song 'Rap God' from 'The Marshall Mathers LP 2,' which set a Guinness World Record for the most words in a hit single. The song contains a staggering 1,560 words within its 6-minute and 4-second runtime. This averages out to about 4.28 words per second. During the song's famous 'supersonic' verse, Eminem ramps up his speed to 9.7 words per second. The track was a critical and commercial success, proving that Eminem remained at the top of his game decades into his career. He later surpassed his own speed on the track 'Godzilla' in 2020, but 'Rap God' remains the most iconic example of his rapid-fire delivery.