Eminem Vs. Axl Rose: Guns N Roses Rocker beats 'MMLP2' Rapper As 'World's Greatest Singer,' View Full List Here!

Guns N Roses frontman Axl Rose has been through some troubling times - but he was still recently deemed the "World's Greatest Singer!"

Just last week, the popular music website concerthotels.com conducted extensive research that studied the high and low notes of several big-name performers and musicians. Interestingly enough, several arists who topped the list are native to the Detroit region of Michigan - including infamous MMLP2 rapper, Eminem. Check out the breakdown of some individual ranks here:

Overall vocal range

Marvin Gaye - 6
Michael Jackson - 26
Iggy Pop - 30
Aretha Franklin - 37
Eminem - 41
David Ruffin - 62
Smokey Robinson - 69

Highest notes

Marvin Gaye - 14
Aretha Franklin - 28
Smokey Robinson - 54
Eminem - 62
Iggy Pop - 66
David Ruffin -71

Lowest notes; ranking

Iggy Pop - 9
Marvin Gaye - 15
Eminem - 18
David Ruffin - 31
Aretha Franklin - 40
Smokey Robinson - 67

And here's the full list of the "World's Greatest Singers" according to vocal range:

ConcertHotels features a very cool interactive function, where fans can "hover over musical bars" to see the songs these specific artists reached such breakthrough notes. Interesting stuff.

Based on statistics, maybe the "Welcome to the Jungle" rocker is the "World's Greatest Singer."  But do Slim Shady fans agree?