Benji Madden is having a good year. In January, he tied the knot with Cameron Diaz, and six months later, the song he co-wrote with his brother, Joel -- 5 Seconds Of Summer's "She's Kinda Hot" -- rocketed up the charts and became a veritable JAM.

Now, he's got a new tattoo that spans pretty much his entire skull, as some recent photos show. The front part comes to an ornate point near the front of his hairline, twisting into different geometric shapes and designs...

...and the back portion goes even wilder with the mathematical configuration, but you can also see the toothy portion of an actual skull. If only we had an aerial view. Sigh.

It reminds me a lot of 1990s WWE star Bam Bam Bigelow, but that's neither here nor there.

What IS here, however, is that Benji is just the latest in a string of celebs to partake in the time-honored tradition of inking up their domes. But which one would you want for your head? That's what we're here to find out.

You know what to do -- swipe left on the lame ones and swipe right on the keepers. And let us know which ones we missed.