MILWAUKEE (AP) _ Hundreds of people joined a high school choir in singing Liberace's trademark song Sunday during a memorial service in the high school from which the entertainer graduated in 1937.

An estimated 600 people filled the West Milwaukee High School auditorium, including three members of the former Milwaukee Jazz Kings, the first band with which Liberace worked professionally.

''This is the way it should be: a full house,'' said West Allis Mayor Jack Barlich. ''That's always what Liberace played for.''

Walter Liberace, born in West Allis in 1921, lived much of his early life in neighboring West Milwaukee. He died Feb. 4 in California of pneumonia related to acquired immune deficiency syndrome.

The West Milwaukee High School choir led the audience in singing ''I'll Be Seeing You,'' a song that was a Liberace trademark.

The Rev. David Haschka of Marquette University in Milwaukee, before delivering a prayer, said Liberace donated generously to the university.

''We knew he was really from West Milwaukee, but all of us kind of claimed him,'' Haschka said.