Who is the #1 selling rock band of all time?

Can you enlighten me on who holds the esteemed title of being the #1 selling rock band of all time? I'm genuinely curious to know which band has captured the hearts and wallets of fans worldwide, amassing the highest sales figures in the history of rock music. Their success must be truly remarkable, given the fiercely competitive nature of the industry. I'm eager to discover the name of this legendary band that has stood the test of time and continues to resonate with audiences.