1. Musical styles**: Pop music and rock music are different musical genres with distinct styles. Pop music typically has a catchy melody, simple lyrics, and a danceable beat, while rock music often has more complex instrumentation and lyrics and may incorporate elements of other genres such as blues, country, and jazz.
2. Target audience: Pop music typically appeals to a broader and more mainstream audience, while rock music may have a more niche or specific fan base.
3. Performance style: Pop stars are often known for their elaborate stage shows, with heavy use of choreography and special effects, while rock stars may place more emphasis on musicianship and raw energy in their performances.
4. Career trajectory: Pop stars may experience a more rapid rise to fame and have shorter careers compared to rock stars, who often develop a loyal following over a longer period of time.
5. Music industry impact: Pop music has a greater impact on popular culture and commercial success, while rock music has had a profound cultural and historical impact, influencing multiple generations of musicians and fans.
It is worth noting that these distinctions are not absolute and there is significant crossover between the two genres. Some artists may defy easy categorization and have influences from both pop and rock music. Additionally, the definition of "pop star" and "rock star" may vary depending on cultural context, time period, and individual preferences.