How many children does Johnny Mathis have?

As of 2014, Johnny Mathis has never been married or fathered children. However, in an interview with The Guardian, Mathis claimed to have acted as a father to some of his siblings' children.

Mathis is a musician who achieved fame during the 1950s as a romantic crooner. His 1958 greatest hits album stayed on the Billboard 200 chart for a record 490 weeks. As of 2015, Mathis is the third best-selling artist of the 20th century, selling more than 350 million records worldwide. Mathis has received many awards in his career, including induction into the Grammy Hall of Fame, a star on the Hollywood Walk of Fame and the 2003 Grammy Lifetime Achievement Award.