Bruno Mars, who is scheduled to perform again this Sunday on the Grammy's, has a lock on Atlanta radio airplay for a fourth week with "Locked Out of Heaven."

The song is getting airplay on Star 94 (51), B98.5 (41), Power (80), Wild (131) and Q100 (76).

It's more than 100 spins ahead of No. 2, Justin Bieber's "Beauty and a Beat."

Taylor Swift's "I Knew You Were Trouble" and Swedish House Mafia's "Don't You Worry Child" are not far behind Bieber, who is hosting  "Saturday Night Live" this week.

Top 10 songs this week on Atlanta radio:

1. Bruno Mars "Locked Out Of Heaven"

2. Justin Bieber "Beauty & a Beat"

3. Taylor Swift "I Knew You Were Trouble"

4. Swedish House Mafia "Don't You Worry Child"

5. Will.I.Am "Scream and Shout"

6. Alicia Keys "Girl on Fire"

7. Rihanna "Diamonds" (former No. 1)

8. Pink "Try"

9. Justin Timberlake "Suit & Tie"

10. Fun. "Some Nights"

Top 5 songs on various Atlanta radio stations

V-103

1. Rihanna "Loveeee Song"

2. Rihanna "Pour It Up"

3. A$AP Rocky "F**king Problems"

4. Keyshia Cole "Trust and Believe"

5. Tamar Braxton "Love and War"

ADDS: Wale "Bad"

Hot 107.9

1. Rihanna "Pour it Up"

2. A$AP Rocky "F**kin Problems"

3. Rihanna "Loveeee Song"

4. Lil Wayne "No Worries"

5. B.O.B. "We Still In This B**tch"

ADDS: Tyga "Dope" Kelly Rowland "Kisses Down Low" Trey Songz "Fumble"

Kiss 104.1

1. Anita Baker "Lately"

2. Miguel "Adorn"

3. John Legend "Tonight"

4. Whitney Houston "I Look To You"

5. Mary J. Blige "Don't Mind"

Majic 107.5/97.5

1. Charlie Wilson "My Love Is All I Have"

2. Tamar Braxton "Love and War"

3. Mary J. Blige "Don't Mind"

4. Avant "You & I"

5. John Legend "Tonight"

Wild 105.7/96.7

1. Bruno Mars "Locked Out of Heaven"

2. Justin Bieber "Beauty and a Beat"

3. Will.i.am "Scream and Shout"

4. Alicia Keys "Girl on Fire"

5. Swedish House Mafia "Don't You Worry Child"

ADDS: Rihanna "Pour It Up" Bruno Mars "When I Was Your Man" Taylor Swift "I Knew You Were Trouble"

Power 96.1

1. Swedish House Mafia "Don't You Worry Child"

2. Justin Bieber "Beauty and a Beat"

3. Taylor Swift "I Knew You Were Trouble

4. Will.i.am "Scream and Shout"

5. Rihanna "Diamonds"

ADDS: Icona Pop "I Love It" Chris Brown "Turn Up the Music" Trey Songz "Simply Amazing"  Avicii "Levels" Cher Lloyd "With Ur Love"

Star 94

1. Ed Sheeran "The A Team"

2. Phillip Phillips "Home"

3. Lumineers "Ho Hey"

4. Fun. "Some Nights"

5. Taylor Swift "I Knew You Were Trouble"

ADDS: Bruno Mars "When I Was Your Man" Muse "Madness" Train "Mermaid"

Q100

1. Taylor Swift "I Knew You Were Trouble"

2. Bruno Mars "Locked Out of Heaven"

3. Pink 'Try"

4. Swedish House Mafia "Don't You Worry Child"

5. Lumineers "Ho Hey"

ADDS: Macklemore & Ryan Lewis "Thrift Shop," Rihanna "Stay" Ke$ha "C'mon"

B98.5

1. Kelly Clarkson "Catch My Breath"

2. Phillip Phillips "Home"

3. Pink "Try"

4. Bruno Mars "Locked Out of Heaven"

5. Carly; Rae Jepsen "Call Me Maybe"

ADDS: Bruno Mars "Locked Out of Heaven"

Fish 104.7

1. Passion "One Thing Remains"

2. Matthew West "Forgiveness"

3. Big Daddy Weave "Redeemed"

4. Third Day "I Need a Miracle"

 5. Rhett Walker Band "When Mercy Found Me"

Praise 102.5

1. James Fortune & Fiya "Hold On"

2. Israel Houghton "It's Not Over"

3. Charles Jenkins "Awesome"

4. Tamela Mann "Take Me to the Knig"

5. John P. Kee "Life & Favor"

ADDS: Mary Mary "Sunday Morning" Isaac Carree "Clean This House'

Kicks 101.5

1. The Band Perry "Better Dig Two"

2. Gary Allan "Every Storm (Runs Out of Rain)"

3. Brad Paisley "Southern Comfort Zone"

4. Jason Aldean "The Only Way I Know"

5. Tim McGraw "One Of Those Nights"

ADDS: Blackberry Smoke "Pretty Little Lie" Lady Antebellum "Downtown"

94.9/The Bull

1. Jason Aldean "The Only Way I Know"

2. The Band Perry "Better Dig Two"

3. Gary Allan "Every Storm (Runs Out Of Rain)"

4. Brad Paisley "Southern Comfort Zone"

5. Hunter Hayes "Somebody's Heartbreak"

ADDS: Kenny Chesney "Pirate Flag" Easton Corbin "All Over the Road" Darius Rucker "Wagon Wheel"

Rock 100.5

1. Slash "Standing in the Rain"

2. 3 Doors Down "One Light"

3. Volbeat "Heaven Nor Hell"

4. Kid Rock "Let's Ride"

5. Soundgarden "Been Away Too Long"

ADDS: (Lots of them, since the format shifted to include more active rock currents, so here's a sampling): Three Days Grace "Chalk Outline," Volbeat "Heaven Nor Hell" Five Finger Death Punch "Coming Down" Halestorm "I Miss the Misery" Black Keys "Little Black Submarines" Shinedown "Enemies" Adelitas Way "Alive" Stone Sour "Absolute Zero" All That Remains "Stand Up" Green Day "Let Yourself Go"

97.1/The River.

1. Cheap Trick 'I Want  You To Want Me"

2. AC/DC "Highway to Hell"

3. Steve Miller "Take the Money and Run"

4. Blue Oyster Cult "Don't Fear the Reaper"

5. Peter Gabriel "Solsbury Hill"