Beyonce and her little sister Solange were no-shows at their father Mathew Knowles' wedding to former model Gena Avery on Sunday, June 30, in Houston, Texas. So what gives? Why did the Sisters Knowles nix the nuptials? Is it a statement on their feelings about their new stepmother, to whom their father was engaged for a year-and-a-half?

It's not quite clear, but Knowles himself told TMZ that his baby girls sent their regrets because they had other plans. "Unfortunately, Beyonce and Solange had previous engagements, which made it impossible for them to attend," Knowles, who was Bey's manager for most of her career until she gave him the boot in 2011, said.

Yeah, but weddings are usually planned months in advance. Bey and Sol couldn't clear their calendars in advance for dear ol' dad? Even if they had other commitments, it sounds like an indication of their feelings about this marriage and perhaps a move to prove their loyalty to their mother Tina, who filed for divorce from Mathew in 2009 after 31 years of marriage. They split after he had an affair with an actress, which produced a son.