Masked Wolf's 'Astronaut in the Ocean' is the hottest rap song in the U.S.

Masked Wolf continues his sky-high ascent with 'Astronaut in the Ocean'.

The Sydney rapper (real name Harry Michael) sees his breakthrough hit lift to No. 1 on Billboard’s Hot Rap Songs chart this week, and it’s at an all-time high No. 6 on the Billboard Hot 100 survey, which blends all-genre U.S. streaming, radio airplay and sales data.

According to MRC Data published by the trade mag, ‘Astronaut in the Ocean’ generated almost 20 million U.S. streams in the week ending May 13, a new weekly best for the song.

Also, radio airplay is up 18% week-on-week to 33.7 million audience impressions for the seven days ending May 16. Right now, ‘Astronaut In The Ocean’ is at No. 16 on the all-genre Radio Songs survey.

Watch Masked Wolf's 'Astronaut in the Ocean':

It's another impressive week for the Tyron Hapi-produced tune, which recently went to No. 1 on the U.S. Digital Song Sales chart and summited on the Billboard Emerging Artists chart. 

Last month, Wolf made his world television debut with a performance on NBC’s The Tonight Show Starring Jimmy Fallon, and he’s since dropped a new cut featuring G-Eazy and DDG and a remix by Brazilian producer Alok.

It's all coming together for the hip-hop artist, who has signed with Teamwrk Records and ADA/Warner Music Australia for ANZ, and Warner Music’s Elektra Records for the world ex-Australasia.

More tunes are said to be coming soon.