Rapper Eminem has blasted his ex-wife for making derogatory comments about him on a Detroit, Michigan radio show last week (ends16FEB07) and insists she needs to move on.

KIM MATHERS appeared on WKQI-FM's MOJO IN THE MORNING show, where she turned the tables on her the rapper, real name MARSHALL MATHERS, by spilling intimate secrets about their relationship.

She said of the rapper, "I can't stand him. He's an absolutely horrible person, and he gets worse every day. I vomit in my mouth whenever I'm around him or I hear his name."

She also described sex with her ex-husband as "bad" saying, "He's not very well endowed."

Kim added, "If you're going to have sex with Marshall, make sure you have a little blue pill (Viagra), because otherwise it does not work."

Eminem has hit back at the comments in a statement released via his publicist DENNIS DENNEHY saying, "It's a shame that I've moved on and Kim hasn't.

"Her ongoing press campaign is doing nothing but harm to the children, and for that I feel truly sorry. For their sake I wish she would stop."

The couple were first married in 1999 but divorced two years later. They remarried in January 2006 and Eminem filed for divorce in April (06).

The pair have a daughter, HAILIE, and also care for Hailie's cousin, ALAINA.