A Great Big World and Christina Aguilera's Say Something has knocked Pharrell Williams' hit Happy off top spot of the ARIA singles chart after a five-week run.
The emotional ballad, which has recently been used by the Seven Network to promote its TV thriller series Revenge, also achieved platinum sales this week.
Williams' Happy fell to second place, while Joel Fletcher and Savage's Swing remained steady in third. Rudimental and Emeli Sande's Free also stayed in the same spot as last week at No.5.
John Legend's All of Me and London Grammar's Strong exchanged spots, with Legend leaping up three places from No.7 to No.4 while the British act fell by the same number.
Avicii's Addicted to You made its top 10 debut, jumping up five spots to sixth place, while Magic's Rude fell a spot to No.8.
Making a huge leap was Rihanna's Jump, which went from No.21 to ninth place.
Jason Derulo's Trumpets rounded out the top 10 after falling two spots.
On the albums chart, American duo MKTO shot to the top with their new self-titled album. Also making a debut were Australian band The Jezabels with their album The Brink, taking second place.
Lorde's Pure Heroine fell a spot to No.3, while The Very Best by INXS leapt four places to No.4.
The Frozen soundtrack remained in fifth place, while Bruce Springsteen's High Hopes and London Grammar's If You Wait each fell a few spots to No.6 and No.9 respectively.
Avicii's True tumbled down the ladder, from the top spot to No.7.
Beyonce's self-titled album's slide wasn't as bad - falling down only a place to eighth.
Dolly Parton, who is set to begin an Australian tour on February 11, rounded out the top 10 with her new album Blue Smoke.
AUSTRALIAN SINGLES CHART
1 (2) Say Something - A Great Big World Feat. Christina Aguilera (EPI/SME)
2 (1) Happy - Pharrell Williams (COL/SME)
3 (3) Swing - Joel Fletcher Feat. Savage (MOS/UMA)
4 (7) All of Me - John Legend (COL/SME)
5 (5) Free - Rudimental Feat. Emeli Sande & Nas (ATL/WAR)
6 (11) Addicted to You - Avicii (UNI/UM)
7 (4) Strong - London Grammar (DEW/UMA)
8 (9) Rude - Magic! (SME)
9 (21) Jump - Rihanna (ISL/UMA)
10 (8) Trumpets - Jason Derulo (WAR)
AUSTRALIAN ALBUMS CHART
1 (NEW) MKTO - MKTO (COL/SME)
2 (NEW) The Brink - The Jezabels (IDP/MGM)
3 (2) Pure Heroine - Lorde (UMA)
4 (8) The Very Best - INXS (UNI/UMA)
5 (5) Frozen - Soundtrack (WALT/UMA)
6 (3) High Hopes - Bruce Springsteen (COL/SME)
7 (1) True - Avicii (UNI/UMA)
8 (7) Beyonce - Beyonce (COL/SME)
9 (6) If You Wait - London Grammar (DEW/UMA)
10 (NEW) Blue Smoke - Dolly Parton (SMC/SME)
AUSTRALIAN STREAMING CHART
1 (1) Happy - Pharrell Williams (SME)
2 (2) Royals - Lorde (UMA)
3 (3) Riptide - Vance Joy (UMA)
4 (4) Drop the Game - Flume & Chet Faker (FCL/IND)
5 (5) Team - Lorde (UMA)
6 (38) Say Something - A Great Big World Feat. Christina Aguilera (SME)
7 (17) Strong - London Grammar (UMA)
8 (6) Timber - Pitbull Feat. Ke$ha (SME)
9 (15) Tennis Court - Lorde (UMA)
10 (10) All of Me - John Legend (SME)
AUSTRALIAN COUNTRY CHART
1 (NEW) Blue Smoke - Dolly Parton (SMC/SME)
2 (3) Fuse - Keith Urban (CAP/EMI)
3 (2) CMAA Winners 2014 - Various (UTV/UMA)
4 (5) The Story So Far - Keith Urban (CAP/EMI)
5 (4) Red - Taylor Swift (BIG/UMA)
6 (1) The Great Country Songbook - Troy Cassar-Daley & Adam Harvey (SME)
7 (8) Cream Of Country 17 - Various (SME)
8 (6) Harder To Tame - McAlister Kemp (ABC/UMA)
9 (7) )Beautiful Noise - Lee Kernaghan (ABC/UMA)
10 (9) The Very Best Of Slim Dusty - Slim Dusty (EMI)
