A couple of months ago, Roger Federer, Grigor Dimitrov and Tommy Haas made their boyband debut alongside singer/songwriter David Foster.

They made their debut on Twitter by singing along to Chicago’s ‘Hard To Say I’m Sorry’ and their single appeared to attract some fans.
 

A few days ago, Canadian tennis player Vasek Pospisil reached out to the boyband in hopes of becoming their fourth member – fifth if you count Foster.
 

The rest of the group members didn’t reply to Pospisil’s request directly on Twitter, but perhaps they reached out to him offline. Hopefully they got back to him, because the 26-year-old Canadian tennis player would make a fine addition to their group.

(H/T Twitter/VasekPospisil)