One Time

by Justin Bieber
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Learn a simple version, phrase by phrase: the melody, then easy chords.

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Other arrangements of One Time

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Sheet MusicBar NotationSimple SheetLead SheetKaraoke · LyricsEasy NotesFalling Notes
Lyrics

When I met you, (Bb)girl, my heart went knock knock.

Now them but ter (F)flies in my stom ach won’t stop stop.

And e ven though (Bb)it’s a strug gle, love is all we got,

so we gon’ keep (F)keep climb in’ to the moun tain top.

Your (Bb)world

is my world,

and my (F)fight

is your fight,

and my (Bb)breath

is your breath,

and your (F)heart…

And now you’re my (Dm)one

love,

my one

heart,

my (C)one

life,

(F)for sure.

Let me tell you one (Dm)time.

I’m a tell you one (C)time.

And I’m a be your (Dm)one

guy, you’ll (Bb)be my num ber one girl,

al ways (C)mak ing time

(F)for you.

I’m a tell you one (Dm)time.

I’m a tell you one (C)time.

I’m a tell you (C)one (Dm)time.

One Time — Visual Piano Sheet Music

7 people have learned this song

"One Time" in visual bar notation — see every note as a colored bar on the staff. Easier to read than traditional sheet music. Scrolls automatically as you play. Key of D, 72 BPM.

Tip: Break this song into sections and master each one separately. The speed control lets you drill difficult passages at any tempo.

Try other practice modes:

Falling NotesBeginnerLead SheetSimple SheetKaraoke

About “One Time”

Why does "One Time" show as colored bars instead of notation?
Bar Notation replaces traditional noteheads with colored horizontal bars on a simplified staff — each bar's vertical position is the pitch and its length is the duration. Much easier to read than classic sheet music while still showing the full arrangement of "One Time".
What key is "One Time" by Justin Bieber played in?
One Time is arranged in the key of D on Super Simple Piano. You can transpose to any other key live in the player.
What's the tempo (BPM) of "One Time"?
The arrangement plays at 72 BPM. Use the speed control (10-200%) to practice slower or play faster.
Is "One Time" easy to play on piano?
This is an advanced arrangement. We recommend breaking it into sections and using the speed control to drill harder passages.
Can I download sheet music for "One Time"?
Yes — registered users can download PDF sheet music, plus MIDI and MusicXML files for use in other notation software.
Who composed "One Time"?
"One Time" was originally performed by Justin Bieber. The Super Simple Piano arrangement is simplified for beginner-to-intermediate players.
What other songs by Justin Bieber can I play here?
Try "FALL", "DIE IN YOUR ARMS", "U SMILE". All are in our player with color-coded notes; pick the one matching your level.
Is this real sheet music for "One Time"?
It's a simplified visual notation using colored bars instead of traditional notes. Each bar's vertical position shows the pitch and its length shows duration — much easier to read for beginners while still showing the complete arrangement of "One Time".
Can I see all the notes in "One Time"?
Yes! The Bar Sheet shows every note in the arrangement as a colored bar. The sheet scrolls automatically during playback, or you can scroll manually to study any section. The song is in the key of D at 72 BPM.