Patti LaBelle: belter of tunes and hurler of water? (Valerie Macon/Getty Images)

Kevin and Roseanna Monk live in the apartment building where LaBelle was staying during a Broadway run last year, the Associated Press reports. One November afternoon, Roseanna Monk says, her toddler walked away from her in the building’s lobby while she struggled with luggage and a car seat, which she alleges prompted a critical response from LaBelle.

“What are you doing letting your kid run around like that?” LaBelle reportedly said, according to Gossip Cop.

After telling the singer to mind her own business, LaBelle allegedly threw half a bottle of water on the two and swore at them. Roseanna Monk claims LaBelle then attempted to hit her.

The Monks’ lawyer, Samuel Davis, told the AP that they asked LaBelle for an apology and a charitable donation. Now they are suing for unspecified damages. Davis told the New York Daily News the couple made the decision to sue after reading about an incident involving LaBelle’s security and a West Point cadet.

“Violence seems to be part of their road show,” Davis told the NYDN.

LaBelle has yet to respond to the accusation.

This post has been updated.