via Beyonce/Tumblr

If a man gets married and his superstar daughters don't attend, did it really happen?

On June 30, Mathew Knowles, Beyonce's former manager and Bey and Solange's current father, married model Gena Avery in a Houston ceremony. However, it appears his daughters' RSVP cards got lost in the mail after neither of them attended the wedding (despite the presumed offer of free cake and the chance to hang out with their dad's new wife). Bey and Knowles have had a notoriously bumpy relationship, though her reason for not attending was unclear. 

"Unfortunately, Beyonce and Solange had previous engagements which made it impossible for them to attend," Knowles said, which for Solange meant a performance at Glastonbury and for Beyonce meant being anywhere in the world that wasn't her father's wedding.

The pair's mom, Tina, filed for divorce from Knowles in 2009 after 29 years of marriage amid allegations of infidelity. Two years later, Bey fired her dad as her manager, which probably ensured a crappy seat at his wedding anyway.

No word on if the DJ spun any Bey at the reception, but we'll just assume "Single Ladies" was played at least once.

Check out Bey and her dad during (what we assume were) better times: