If you ever wanted hear Backstreet Boys sing about ticks, today is your lucky day.

We kind of thought the Backstreet Boys posing with pandas was this year's pinnacle "Backstreet Boys being funny" moment, but NOPE! Backstreet Boys just appeared on "The Late Show With David Letterman," where not only did they sing a cappella and show off their signature five-part harmony, but the "In A World Like This" singers parodied their own songs on Letterman's "Top 10" skit! Like, BSB making casual fun of every Top Ten BSB hit ever, which is, as you might expect, comedic gold.

Watch the Backstreet Boys parody their own songs on "The Late Show With David Letterman" after the jump.

While we won't reveal all the funnies BSB had up their sleeve, but we will tell you about that one time the bros turned "Everybody (Backstreet's Back)" into, you know, a PSA about tick prevention: "Everybody (Yeah)/ Check your body (Yeah)/ Take a moment/ After being out in the stick/ To check  yourself for ticks!" #AMAZING. Then, after you're done imagining what a camping trip would look like with BSB, look out for other amazing parodies to "I Want It That Way," "Quit Playing Games (With My Heart)," and every other amazing BSB song ever written. And you might learn a few things about New Jersey Governor Chris Christie and M.I.A. union leader Jimmy Hoffa while you're at it...

+ Watch the Backstreet Boys parody their own songs on "The Late Show With David Letterman."

Photo credit: CBS