Turns out U2 did a fourth song on SNL off-air. It was With Or Without You.

7:41 AM, Sep 27th, 2009  via web

U2 on Saturday Night Live, 26/09: Today, U2 appeared on Saturday Night Live. This is U2’s third appearance on the show; http://url4.eu/X3qz

7:30 AM, Sep 27th, 2009  via RSS2Twitter

UV is played complete with steering wheel mic and laser jacket - but credits scroll and it is cut off before the end.

7:03 AM, Sep 27th, 2009  via web

Third song on SNL is Ultra Violet. It has never been performed live outside of the full concert setting before.

6:59 AM, Sep 27th, 2009  via web

Via @ScharffIsHere, With Or Without You was rehearsed earlier today.

6:49 AM, Sep 27th, 2009  via web

MOS was a somewhat shortened version, during which Bono did some ad-libbed rapped lyrics.

6:42 AM, Sep 27th, 2009  via web

Second song on SNL is Moment Of Surrender. First time it has been done outside of a 360 concert.

6:35 AM, Sep 27th, 2009  via web

U2 on Saturday Night Live: first song played is Breathe.

6:11 AM, Sep 27th, 2009  via web