During a series of Twitter threads, the brothers wrote, "Louis Walsh at this point only wants acts to manage to make it look like he’s doing something!".
They also wrote, "He’s a cold-hearted two-faced b*tch who uses his powers for his own benefit".
Along with a screenshot of an interview with Walsh, Jedward also wrote, "Louis Walsh wants to make another girlband like Girls Aloud who he told had to lose weight!".
"Don’t get involved with Toxic Management!".
This comes after Louis Walsh had recently said that he was looking for a new girl group to manage. He said that he was looking to manage a talented group with a strong attitude, aged from 15 up.
Walsh also said that he will hold auditions for this band in the Autumn.
Check out the thread below.
This tweet drew support from a few followers, with one writing "Exactly He takes advantage of people for his own benefit!".
The brothers whose full names are John and Edward Grimes have previously criticised Simon Cowell, blasting the music mogul's treatment of contestants.
"Simon Cowell thinks he's the Mafia leader of the music industry when in reality he's nothing but a bad facelift".
Jedward also named bands such as Little Mix and One Direction who have allegedly been stung by their contracts.