While this EP is not essential to everyone's CD collection, it is a nice addition. All Incubus fans will know of these songs as soon as they read the track listing, but the songs have all been "remixed", if you will, on performed live. The live versions of "Favorite Things" and "Pardon Me" are spectacular, and the acoustic versions also show Incubus' musical depth. There is another track on this EP called "Crowded Elevator", which was also on the "Scream 3" soundtrack. I don't care much for this song, and it is one of the reasons that this collection didn't get five stars and only four. A run-down of the six track on a scale of one to five... 1. Pardon Me Acoustic- You have probably heard this song on your local rock radio station, but this song sounds a little bit weird with its slowed-down tempo, but this song is good in its own behalf (4.5/5) 2. Stellar Acoustic- The best acoustic version on this EP, this song was screaming to have an acoustic version done to it. The slow tempo and great lyrics make this song a winner (5/5) 3. Make Yourself Acoustic- Cool song, but wasn't really made to be put into acoustic format. As with "Pardon Me", it sounds funny without the usual heavier tone. The song is good, but not perfect (4/5) 4. Crowded Elevator- Like I said before, this song was on the "Scream 3" soundtrack, and I don't care for it much. For people who haven't heard it, it has a very funky feel, and it sounds like any other Incubus song (2.5/5) 5. Favorite Things Live-I loved this song on S.C.I.E.N.C.E., and I love it again on "When Incubus Attacks Vol. 1". This song gives me chills when I hear it and it was played practically perfectly (4.5/5) 6. Pardon Me Live-Perfect. Just perfect. I love this song, and it sounds even cooler played live (5/5) Overall, this album is a worthy addition to your collection, but since bigger Incubus fans may already know these songs by heart, it may not be essential to their collection.