What is the most popular song in history?
There is no definitive way to determine the single most popular song in history. Some songs that could lay claim to being one of the most popular include:

• The Macarena by Los Del Rio - A huge hit in 1996, The Macarena spent 14 weeks at #1 on the Billboard Hot 100. It's one of the best-selling singles of all time with over 50 million copies sold.

• Candle in the Wind 1997 by Elton John - Elton John's tribute single to Princess Diana became one of the best-selling singles ever, with 33 million copies sold. It topped charts in multiple countries for many weeks.

• The Twist by Chubby Checker - The Twist popularized a new dance craze in the early 1960s and reached #1 in 1960 and again in 1962. It may have sold over 50 million copies, making it possibly the best-selling single ever.

• Smooth by Santana featuring Rob Thomas - The Latin/rock fusion of Smooth spent over a month at #1 on the Billboard Hot 100 in 1999. It won three Grammys and sold over 20 million copies worldwide.

There are many other contenders as well, from songs like I Gotta Feeling by The Black Eyed Peas to My Heart Will Go On by Celine Dion. Due to the challenges of tracking sales and chart performance over a long period of time and across countries, there may never be universal agreement on the single most popular song in history. It ultimately comes down to how you define popularity and how far back in time you look.
What song got the most Grammy awards in the 20th century? If it is only there are multiple songs that are tied, can you give me a list like you did above? And if there is only one song, can you also tell me what the lyrics are about?
Considering the 21st century, the following songs have won multiple Grammy awards:

1. Clarity by Zedd feat. Foxes - won the Grammy for Best Dance Recording in 2014 and Best Remixed Recording, Non-Classical in 2015.

2. Don't Let Me Down by The Chainsmokers feat. Daya - won the Grammy for Best Dance Recording in 2017 and Best Remixed Recording, Non-Classical in 2018.

3. Where Are Ü Now by Skrillex and Diplo with Justin Bieber - won the Grammy for Best Dance Recording in 2016 and Best Remixed Recording, Non-Classical in 2016.

4. Strobe by Deadmau5 - won the Grammy for Best Remixed Recording, Non-Classical in 2009 and Best Dance/Electronic Album in 2021.

If we were to consider only one EDM song, Strobe by Deadmau5 is the only one to have won multiple Grammy awards in the 21st century. The song is an instrumental piece and does not have lyrics. It is known for its hypnotic melody and has been described as a masterpiece of the progressive house genre. The song's title refers to the use of strobe lights in clubs and other dance venues.