Justin Bieber shares a teaser of 'Boyfriend.'

There are only a few monumental firsts that are truly unforgettable in life: Your first kiss, your first date and the first time you hear a short taste of Justin Bieber's much-anticipated new single, "Boyfriend," from his forthcoming Believe album. Honestly, we're not even sure how the internet is still standing after he shared the 13-second snippet during a recent visit to the "Ellen" show.

Listen to a preview of Justin Bieber's "Boyfriend" after the jump.

After Justin revealed his hunky cover art for "Boyfriend," we were definitely expecting an equally evolved, grown-up sound, and the preview doesn't disappoint. The teaser still leaves the majority of the tune (coproduced by Mike Posner) a mystery, but what we can gather from the minimal thumps and beats is that Bieber is leaning toward some serious hip-hop inspiration -- and (drumroll, please!) we got lyrics! "I could be a gentlemen/ If I was your boyfriend, I'd never let you go."

The full "Boyfriend" single drops Monday so we have to wait the entire weekend to hear it, which will officially make the next two the longest days of our lives. But until then, you know what to do -- repeat this ish over and over and over and over...

+ Listen to a preview of Justin Bieber's "Boyfriend."