REO Speedwagon achieved commercial success in the 1970s and 1980s with a series of hit albums and singles. Some of their most popular songs include "Keep on Loving You," "Can't Fight This Feeling," and "Take It on the Run."

The band's music is characterized by its melodic rock sound, catchy hooks, and heartfelt lyrics. They are known for their dynamic live performances and have built a loyal fan base over the years.

Despite changes in the music industry, REO Speedwagon has continued to tour and record music, maintaining a presence in the rock music scene. They are considered one of the iconic bands of the classic rock era and have left a lasting impact on rock music.