Thanks guys! @majordecibel: Sparkfun mentions that the B and G pin might be switched sometimes and that is really true! Mine was like that so do not panic if the colors look horribly wrong: just switch the B and G pin wires. Also, remember that the ULN2003A chip is really nice to drive this strip since our Arduino PWN pinouts are 5VDC and the strip requires 12VDC. Finally, remember to ground the ULN2003A chip because I seems to "work" without the biasing but the light is much weaker and fluctuates a lot (it made me sad initially). Then I realized and grounded the pin, and the led strip was glorious 