Simplify the following text for a Grade 12 native English-speaking person.
Original: Other featured performers were Carl Reiner , Howard Morris , Nanette Fabray , Bill Hayes , Judy Johnson , The Hamilton Trio and the soprano Marguerite Piazza .
Simplified: Other people who appeared were Carl Reiner , Howard Morris , Nanette Fabray , Bill Hayes , Judy Johnson , The Hamilton Trio and the soprano Marguerite Piazza .