Despite being the victim of an online prank, the Mets are gonna give Rick Astley a chance.

Thanks to a pair of online humor sites, the cheesy 1980s pop singer and his hit “Never Gonna Give You Up’’ received more than 5 million write-in votes to be the Mets’ permanent sing-along song in the eighth inning.

The Mets are playing the top six vote-getters songs in order during the eighth inning of their first six home games, starting with Astley’s song today in the final Shea Stadium opener.

The winner will then be decided by which song the club feels gets the strongest fan reaction.

The other candidates are Bon Jovi’s “Livin’ On A Prayer,’’ The Monkees’ “I’m A Believer,’’ Neil Diamond’s “Sweet Caroline,’’ The Foundations’ “Build Me Up Buttercup’’ and “Movin’ Out’’ by Billy Joel.