Specific Want grey background remove and make it transparent

[peaceandlove]

very simple job, i did not have photosho installed , tried online tool like pixler but it not removing it perfectly,

simply want to change the black/grey background of picture to transparent , keeping the logo and text as white.

 

[MentosCubing]

The image is here, you just can't see it in the preview. Right click the big empty space in my reply.

 

[Isac]

Here's a higher resolution PNG file. Also invisible.

 

[peaceandlove]

Thansk a lot, so nice of you people, looking so nice.