Beyonce Knowles ''rescued'' her sister's wedding.
Solange tied the knot with videographer Alan Ferguson last Sunday (16.11.14) but the nuptials nearly resulted in a disaster when the 'Losing You' hitmaker reacted badly to the seafood.
The bride's mother, Tina, said: ''[Solange] went through the wedding and the sit-down dinner and she was just fine, and then they had a second line in the streets of New Orleans and she was dancing so hard, I think she just got overheated.
''And the seafood - she had a reaction to it. So her face broke out in welts.''
The 28-year-old bride disappeared from the festivities for two hours, whilst Beyonce gave her an allergy tablet.
Tina explained: ''[Beyonce] took her back to the hotel and gave her Benadryl and in two hours she showed up at the reception and did the dance with her son and just had a ball.''
Tina, 60, continued to gush about the ''heartfelt'' wedding.
She told Entertainment Tonight: ''There wasn't a dry eye in the place.
''[The couple] were just so heartfelt and I just think the wedding epitomised Solange as a person, and her and Alan's artistic flare.''
Meanwhile, sources revealed that Beyonce and Jay Z had a great time at the wedding, too.
An insider previously said: ''Beyonce and Jay Z were totally into it and so affectionate. They both kept putting their hands on each other's butts and they were dancing up a storm.
''Beyonce and Jay Z were so friendly to everyone and very gracious. They seemed so genuinely happy. They were having the best night.''