It wasn’t a coincidence that Katy Perry released her galactic love song E.T. 14 years ago. For many years, the global pop star has been fascinated with Isaac Newton, astrophysics and everything extraterrestrial.

She even tried to go to space in 2011, and this month made her dream come true when she hung out in space for a couple of minutes alongside other celebrities. But does she now count as an astronaut?

What is an astronaut?

The Merriam-Webster Dictionary defines astronaut as “a person whose profession is to travel beyond the earth’s atmosphere.” But on a different, broader interpretation, Merriam-Webters simply defines it as “any person who travels beyond the earth’s atmosphere.”

So anyone who goes to space is an astronaut? Well, it depends on who defines it.

NASA calls astronauts those “who make ‘star sailing’ their career profession,” alluding to the fact that the word “astronaut” derives from the Greek words “star sailor.”

For the FAA, to be considered an astronaut, a person must demonstrate a role in the flight’s safety or operations.

Is Katy Perry an astronaut?

It makes sense to simply call anyone who has been to space an astronaut, given that, until recently, space travel was a professional career.

But, space tourism has opened out-of-atmosphere travel to more than just professional astronauts.

While the pop star has a deep interest in space topics, Katy Perry does not possess any academic or professional training as a space worker. She can confidently say that she was a space tourist and the first pop singer to sing from space.

There’s also no universally accepted definition of where space starts. Many consider the Karman Line — about 62 miles above Earth sea level and where the atmosphere is too thin to create aircraft lift — as the edge of space; some government agencies say 50 miles above Earth is where space begins.

The Blue Origin flight that ferried Perry to space topped 65 miles.