 Jackson began her singing career in 1974 , performing with her siblings in Las Vegas . The Vegas shows had initially begun in April , without Rebbie ; due to a sprained ankle , Rebbie 's debut was postponed until June . Her five brothers were the main draws , with herself , Randy , Janet , and La Toya serving as fillers for the performances . 
 Jackson began her singing career in 1974 , performing with her siblings in Las Vegas . The Vegas shows <a href='been_done' title='1'><mark>had</mark></a> initially begun in April , without Rebbie ; due to a sprained ankle , Rebbie <a href='null_genetive' title='2'><mark>'s</mark></a>debut was postponed until June . Her five brothers <a href='uninflect' title='3'><mark>were</mark></a> the main draws , with herself , Randy , Janet , and La Toya serving as fillers for the performances . 
Jackson began her singing career in 1974 , performing witt her siblings in Las Vegas . The Vegas shows done initially begun in April , w/o Rebbie ; due to a sprained ankle , Rebbie  debut was postponed untill June . Her five brothers was the main draws , with herself , Randy , Janet , and La Toya serving as fillers fa the performances .