Ariana Grande is only 21 years old, and her sophomore album My Everything just debuted at No. 1 on the Billboard 200 album chart. This isn't the first time a songstress has hit a stride or career high at 21. Is it a magical age for many of our favorite female singers?
We've rounded up 21 of the biggest names in modern pop to investigate where they all were in their careers at 21 years old. Were they on a massively successful world tour? Sweeping award shows? Or still struggling to make it in the industry?
Click through and find out what your favorite female pop star was doing at 21...
Turned 21 Years Old: May 5, 2009
Adele's now-classic 21 album is titled after her milestone year. The British powerhouse had cancelled a U.S. tour that would have run from 2008 through mid-2009 in order to spend more time with an ex-boyfriend. She told NYLON magazine, "[I] was drinking far too much and that was kind of the basis of my relationship with this boy ... I couldn't bear to be without him." Said ex would end up the inspiration for 21, an album that went on to become America's biggest-selling record of both 2011 and 2012, as well as the last album to be certified Diamond (more than 10 million copies sold). It's safe to say Adele's year at 21, while personally difficult, went on to help cement her place in pop music history.