How can I crochet ears onto a beanie?

I’m fairly new to crochet and I want to crochet a panda beanie. So, I’m pretty much just crocheting a white beanie but adding round black ears at the top. I have an idea on how to make the ears, but I just don’t know how to get the ears on. I haven’t had any experience putting two different pieces together. Is there a way I can crochet the beanie without making 3 different pieces?