According to XConnect:
BEYONCE STILL PLANS TO DO MICHAEL JACKSON TRIBUTE
After announcing she and husband Jay-Z are expecting a baby, a rep. for Beyonce has confirmed that her “pregnancy will not affect her performance,” for the October 8 Michael Jackson Tribute Concert.
Her pregnancy is most likely the reason she agreed to perform via satellite instead of flying to be present in Wales for the show. Beyonce is one of the most recent performers added to the show and will sing one of her favorite Jackson 5 songs via satellite, after originally citing scheduling issues.
Sources say Beyonce is around four months pregnant, which means that, by the time of the concert, she’ll be around five months.
The one-time event will be broadcast live in 30 countries.