This is pretty fun!

According to a Yahoo article:

"The official MLB Twitter account and the accounts for the San Francisco Giants, Los Angeles Dodgers, Cincinnati Reds and others nosedived Monday into previously unmarked Twitter territory in professional baseball.

We've seen teams troll each other, talk smack and even engage in long-term, fact-backed debates. But we've never seen a Twitter sing-along of a Taylor Swift song by MLB teams." (Yahoo)

Here's what it looks like on Twitter: