Claim: Journey's fourth album was Infinity.
Evidence: Originally a progressive rock band , Journey was described by AllMusic as having cemented a reputation as `` one of America 's most beloved -LRB- and sometimes hated -RRB- commercial rock/pop bands '' by 1978 , when they redefined their sound by embracing pop arrangements on their fourth album , Infinity.
Infinity is Journey 's fourth album , released in January 1978 on Columbia Records.