Gear up Swifties -- Taylor Swift could be this season's Super Bowl halftime show act ... at least, that's what the musician's fans are thinking after the NFL appeared to drop a big clue into it all on Thursday night.

Here's the deal -- back in May, Pepsi pulled out of its longstanding partnership with the league and its Big Game's halftime show ... and on Thursday night, the NFL announced it's finally replaced the soft drink company with Apple Music as the new sponsor.

In its announcement, the league made no mention of a potential halftime performer for Super Bowl LVII ... but, according to Swift fans, it didn't need to -- because the timing of the release said it all.