"Chasing the Sun" is a song by English-Irish boy band The Wanted.
it could be about young love, where they are stubborn, curious, and adventurous. The term "chasing the sun" would be like chasing your dreams.
"We've only just begun, hypnotized by drums" would be like hypnotized with the newness of life, where you just felt so... YOUNG and FREE and you think you can do anything.

I'm better
So much better now
I see the light, touch the light,
We're together now

I'm better
So much better now
Look to the skies, give me life
We're together now

We've only just begun
Hypnotised by drums
Until forever comes
You'll find us chasing the sun
They said this day wouldn't come
We refused to run
We've only just begun
You'll find us chasing the sun
Oh oh oh oh oh oh
Oh oh oh oh oh oh
Oh oh oh oh oh oh
You'll find us chasing the sun
Oh oh oh oh oh oh
Oh oh oh oh oh oh
Oh oh oh oh oh oh
You'll find us chasing the sun

When the daylight's fading
We're gonna play in the dark
Till it's golden again
And now it feels so amazing
Can't see it coming
And we'll never grow old again
You'll find us chasing the sun

I'm never
I'm never down
Lying here, staring up
And you're looking down

I'm never
I'm never down
Live forever, forever
With you around

We've only just begun
Hypnotised by drums
Until forever comes
You'll find us chasing the sun
They said this day wouldn't come
We refused to run
We've only just begun
You'll find us chasing the sun
The sun, the sun, the sun
You'll find us chasing the sun

Oh oh oh oh oh oh
Oh oh oh oh oh oh
Oh oh oh oh oh oh
You'll find us chasing the sun
Oh oh oh oh oh oh
Oh oh oh oh oh oh
Oh oh oh oh oh oh
You'll find us chasing the sun

When the daylight's fading
We're gonna play in the dark
Till it's golden again

And now it feels so amazing
Can't see it coming
And we'll never grow old again
You'll find us chasing the sun

You'll find us chasing the sun

When the daylight's fading
We're gonna play in the dark
Till it's golden again

And now it feels so amazing
Can't see it coming
And we'll never grow old again
You'll find us chasing the sun

Oh oh oh oh oh oh oh
Oh oh oh oh oh oh
Oh oh oh oh oh oh
You'll find us chasing the sun
Oh oh oh oh oh oh oh
Oh oh oh oh oh oh
Oh oh oh oh oh oh
You'll find us chasing the sun