Don’t Say You Heard It From Me But, Did You Know…Billboard Magazine
Billboard Magazine established It's "Hot 100" chart on August 4, 1958 to track the most popular songs in the United States, based on sales and radio airplay. The very first #1 song was "Poor Little Fool" by Ricky Nelson. Since then there have been 1,003 different #1 songs. The current #1 song across the country is "Rolling In The Deep" by Adele !!!