*An upcoming song from Nas includes lyrics that accuse his ex-wife Kelis of infidelity.

The track, titled “Strong Will Continue,” is from his forthcoming album “Distant Relatives,” reports New Zealand’s 3 News. [Listen to the track below.]

The former couple’s four year marriage ended with Kelis filing for divorce last year, just months before giving birth to their son Knight in July. The artists have been embroiled in a nasty divorce battle ever since.

At issue has been the amount of child and spousal support Kelis should receive after Nas was ordered to pay more than $51,000 per month.