Feb. 24, 2014 -- Dale Earnhardt Jr. picked a good night to join Twitter.
The NASCAR driver has been reluctant to participate in social media, but he made a promise to join Twitter if he won Sunday's Daytona 500. He kept that promise following the rain-soaked win, posting a photo of himself with the trophy.
"Tonight seemed like as good a night as any to join Twitter. How is everyone doin?" he wrote, adding the hashtag #2XDaytona500Champ.
He previously won the race in 2004.
JR Motorsports grabbed the @DaleJr Twitter handle for him several years ago, just in case he ever wanted to start tweeting. While Earnhardt never sent a tweet before Sunday's victory, the account had more than 240,000 followers this morning.
The Associated Press contributed to this report.