Weak (A Cappella)

I don't know what it is that you've done to me But it's caused me to act in such a crazy way Whatever it is that you do when you do what you're doing It's a feeling that I don't understand 'Cause my heart starts beating triple time With thoughts of loving you on my mind I can't figure out just what to do When the cause and cure is you I get so weak in the knees, I can hardly speak I lose all control and something takes over me In a daze and it's so amazing It's not a phase, I want you to stay with me By my side, I swallow my pride Your love is so sweet It knocks me right off of my feet Can't explain why your loving makes me weak