| Show name | Test For Echo |
| Show DJs | DJ Kostaccio |
| Show info | Washington's Premiere Party Mix hosted by DJ Kostaccio, aka Marc Koszak, W&J class of 2011 and former WNJR student staff member. |
| Show link | http://wnjr.radioactivity.fm/show.html?showoid=5163 |
| Playlist RSS | http://wnjr.radioactivity.fm/feeds/playlistrss.html?showoid=5163&date=12-04-2015 |
| Contact info | Marc: alldetroitmuscle@yahoo.com |
| Time | Title | Artist | Album | Label | Genre |
| 10:00 pm | Confident | Demi Lovato | |||
| 10:04 pm | Turn up the music | Chris Brown | |||
| 10:08 pm | Turn Down For What | DJ Snake feat. Lil Jon | |||
| 10:11 pm | Uptown Funk | Mark Ronson | |||
| 10:15 pm | Come Get It Bae | Pharrell Williams and Miley Cyrus | |||
| 10:18 pm | Locked out of Heaven | Bruno Mars | |||
| 10:22 pm | Armada Latina | Cypruss Hill | |||
| 10:26 pm | Cosmic Girl | Jamiroquai | |||
| 10:30 pm | Blaze of Glory | Bon Jovi | |||
| 10:35 pm | Cant Live Without Your Love and Affection | Nelson | |||
| 10:39 pm | Got You By the Balls | AC/DC | |||
| 10:43 pm | Ice Ice Baby | Vanilla Ice | |||
| 10:47 pm | But Anyway | Blues Traveler | |||
| 10:51 pm | King of Wishful Thinking | Go West | |||
| 10:55 pm | U Can't Touch This | MC Hammer | |||
| 10:59 pm | Ride The Wind | Poison | |||
| 11:03 pm | She's My Baby | Traveling Wilburys | |||
| 11:06 pm | Poison | Bell Biv Devoe | |||
| 11:10 pm | The Boxer | Mumford and Sons | |||
| 11:14 pm | 19-2000 (remix) | Gorillaz | |||
| 11:17 pm | Party Girl | Asher Roth | |||
| 11:21 pm | Spark the Fire | Gwen Stefani | |||
| 11:24 pm | Fine China | Chris Brown | |||
| 11:28 pm | Fireball | Pitbull feat. John Ryan | |||
| 11:32 pm | This Time It Must Be Love | Donnie Iris | The High and Mighty | ||
| 11:36 pm | Pyromania | Cascada | |||
| 11:39 pm | Everytime we touch | Cascada | |||
| 11:42 pm | Green Light | Roll Deep | |||
| 11:46 pm | Give me all your luvin' | Madonna feat. Nicki Minaj | |||
| 11:50 pm | Somebody That I Used to Know | Gotye |
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