Updated

The late American crooner Andy Williams, famous for his classic easy-listening hits like "Moon River," also had a passion for Navajo blankets.

The 80 museum-quality blankets are being offered for sale by Sotheby's New York in late May.

They're expected to bring over $1 million.

The highlight is a rare Navajo Man's Wearing Blanket. It's woven in a "chief's first phase design" characterized by the addition of fine red stripes. Its pre-sale estimate is $200,000 to $300,000.

Only about 50 are known to exist.

Williams decorated his home and the Moon River Theater with the blankets, both in Branson, Mo.

They were featured in a St. Louis Art Museum exhibition in 1997-1998.

The singer, also known for his Christmas TV specials, died in September at age 84.

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Online: www.sothebys.com