Because

[C#m]  [C#m]  [Ebm7]-5  [Ab7]  [A]  [C#m]  [A7]  [A13]  [D]  [Ddim]

   [C#m]                [C#m]                [Ebm7]-5  [Ab7]
Be-cause the world is round, it turns me on_________;

Be-[A]cause the [C#m]world is [A9]round[A13]___. [D]Ah_[Ddim]____.

   [C#m]               [C#m]               [Ebm7]-5  [Ab7]
Be-cause the wind is high, it blows my mind_______;

Be-[A]cause the [C#m]wind is [A9]high_[A13]___. [D]Ah.

(*This is an exception, the Ddim is played for one beat and the last three beats have no chord)

[Ddim]     Love is old, love is [F#]new;

Love is all, love is [Ab7]you. [Ab7]

   [C#m]              [C#m]               [Ebm7]-5  [Ab7]
Be-cause the sky is blue, it makes me cry________;

Be-[A]cause the [C#m]sky is [A9]blue_[A13]___. [D]Ah_[Ddim]______[C#m]_____[C#m]___.

[Ebm7]-5  [Ab7]  [A]  [C#m]  [A9]  [A13]  [D]  [Ddim]
Ah_________________. Oo_____. Ah_____.

Chords used:
   [C#m]  [Ebm7]-5  [Ab7]  [A]  [A7]  [A13]  [D]  [Ddim]  [A9]  [F#]
E:--0-----2------2---0--0----2---2---1----0---2--
B:--2-----2------1---2--2----2---3---0----0---2--
G:--1-----2------1---2--0----0---2---1----0---3--
D:--2-----1------1---2--2----2---0---0----2---4--
A:--x-----x------x---0--0----0---x---x----4---x--
E:--x-----x------x---x--x----x---x---x----x---x--