Kanye West and Kim Kardashian West got a stern letter from TriMet after apparently cashing in on a piece of vintage Portland.

TriMet's former logo, retired in 2002.

TriMet had to ask the celebrity couple -- a rapper and a, uh, television personality, respectively -- to stop using its former logo, as first reported by KGW-TV. One of the station's viewers spotted the distinctive branding on a sweatshirt from their line of children's clothing, The Kids Supply.

The shirt sold as part of a set that reportedly retailed for $125.

The transit agency's lawyers sent a cease-and-desist letter to Kanye West, who agreed through his law firm to stop using the logo.

"The law firm that represents Mr. West and Kids Supply, LLC indicated that their client was unaware that the image was the TriMet logo," Angela Murphy, a spokeswoman for the transit agency, said in an email.

The agency was told only about 300 of the shirts were sold. The line's website indicates it's sold out.

The agency streamlined the twisted-arrow logo in 2002, but it still appears on about 175 older buses and MAX trains. TriMet still owns the trademark for the logo.

-- Elliot Njus