Rihanna weighs in on 'Real Housewives of New York' drama with a pointed Instagram selfie

• Rihanna is showing support for "Real Housewives of New York" castmember Leah McSweeney.
• The singer posted on Instagram, a selfie in McSweeney's "Married to the Mob" shirt, on Wednesday.
• McSweeney mentioned Rihanna as her "demographic" on Tuesday's episode of Real Housewives of New York.

Rihanna is a multi-hyphenated, booked-and-busy public figure - but that doesn't stop her from making time to support a fellow fashion designer.

The "Savage x Fenty" founder posted a selfie on Instagram showing herself wearing a Married to the Mob T-shirt, a sign of support for "Real Housewives of New York" ("RHONY") star Leah McSweeney. Rihanna was name-checked on Tuesday's episode when an argument broke out between castmembers Ramona Singer and McSweeney.

"Let me promote Leah Mob or Mob something," Singer said to McSweeney.

"You aren't exactly my demographic, so it's all good," McSweeney replied. "I already have Rihanna wearing my s---, you think I need you wearing my s---?"

Rihanna not only posted a picture of herself in one of McSweeney's shirts, but also a clip of the scene with the caption "What was said [Ramona Singer]?" and a cry-laughing emoji.

In an interview last year, McSweeney told Bravo about the first time she met Rihanna.

"One of my most memorable New York City nights had to have been when I went to a Met Gala afterparty," McSweeney said. "I got introduced to Rihanna and she thought she knew me already - and she gave me a huge hug and was like, 'I know you!' and I was like, 'Actually, you don't know me. But, you wear my clothing line. You wear my brand, and thank you for that.'"

"The Real Housewives of New York" airs Tuesdays at 9 p.m. ET on Bravo.