Simplify the following text for a Grade 8 native English-speaking person.
Original: The band consists of vocalist and rhythm guitarist Alexander Gaskarth , lead guitarist and backing vocalist Jack Barakat , bassist and back vocalist Zachary Merrick , and drummer Rian Dawson .
Simplified: The band 's lead singer and guitarist is Alex Gaskarth . The other band members are guitarist Jack Barakat , bassist Zack Merrick , and drummer Rian Dawson .