According to Google Trends, Adele has a higher search volume than Maroon 5 in the past 12 months. This means that more people are searching for information about Adele than Maroon 5.
In addition, Adele has won more awards than Maroon 5. She has won 15 Grammy Awards, while Maroon 5 has won three. This suggests that Adele is more highly regarded by music critics and industry professionals.
Finally, Adele has sold more albums than Maroon 5. Her album "21" has sold over 30 million copies worldwide, while Maroon 5's album "V" has sold over 2 million copies. This suggests that Adele has a larger fan base than Maroon 5.
Based on these factors, it is clear that Adele is more famous than Maroon 5.