Simplify the following text for a Grade 5 native English-speaking person.
Original: Meaghan Jette Martin ( born February 17 , 1992 ) is an American actress and singer , who is known for her role as Tess Tyler in the Disney Channel original movies Camp Rock and Camp Rock 2 : The Final Jam .
Simplified: Meaghan Jette Martin is an American actress and singer . She played the role of `` Tess Tyler '' in the Disney Channel movie Camp Rock .