Can Jason Derulo knock Robin Thicke off the top of the chart?

Jason Derulo’s The Other Side is closing in on Robin Thicke’s Blurred Lines in the race to this week's Official Number 1 single!

Ding! Ding! Seconds out… Round 1!

Reigning chart champ Robin Thicke has remained undefeated at the top of the Official Singles Chart for the last three weeks with Blurred Lines. But could that all be about to change?

The US R&B star, who teamed up with rapper TI and Daft Punk collaborator Pharrell Williams for his cheeky summer smash hit, is currently slugging it out with Miami singer/songwriter Jason Derulo in the battle to be this week’s Number 1 single.

According to the Official Charts Company‘s midweek weigh-in, Derulo’s The Other Side – which is the first cut from his hotly anticipated, as-yet-untitled, third album – is at Number 2, trailing Thicke’s track by a very close margin of just 7,000 copies. Up to midnight last night (Tuesday, June 18 ) Blurred Lines had added a further 60,000 sales, which now brings its impressive sales tally to 645,000 copies after three and a half weeks on sale.

Will the Robin Thicke make it a fourth week at Number 1 this weekend? Or will the kid from Miami steal his title by the final bell? Tune into the Official Chart with Jameela Jamil on BBC Radio 1 from 4pm on Sunday, or log on to www.officialcharts.com from 7pm to find out!

New entries and high climbers

Dizzee Rascal looks set to score this week’s second highest new entry, and his 16th Top 40 hit as a lead artist overall, with Goin’ Crazy FT Robbie Williams (4).

BRIT Awards 2013’s Critics’ Choice winner, Tom Odell, is set to make hisTop 40debut this weekend with Another Love (11), and electronic trio London Grammar are also set to make their Top 40 debut with Wasting My Years (19).

Remix Junkies cover of Icona Pop and Charli XCX’s fourthcoming single, I Love It, is at Number 20 on today’s Official Chart Update. The original version of the track is set for release in the UK on June 30. The Voice finalist Leah McFall is set to score her second Top 40 this weekend with her rendition of Killing Me Softly at Number 30.

And finally, Ke$ha’s Crazy Kid FT Will.I.Am leaps 38 places to enter midweek at Number 37.

The Official Singles Chart Update Top 40 is as follows:

1	BLURRED LINES	ROBIN THICKE/TI/PHARRELL
2	THE OTHER SIDE	JASON DERULO
3	LA LA LA	NAUGHTY BOY FT SAM SMITH
4	GOIN' CRAZY	DIZZEE RASCAL/ROBBIE WILLIAMS
5	LET HER GO	PASSENGER
6	GET LUCKY	DAFT PUNK FT PHARRELL WILLIAMS
7	DEAR DARLIN'	OLLY MURS
8	WILD	JESSIE J/BIG SEAN/D RASCAL
9	EVERYTHING HAS CHANGED	TAYLOR SWIFT FT ED SHEERAN
10	I WILL SURVIVE	LEAH MCFALL
11	ANOTHER LOVE	TOM ODELL
12	CAN'T HOLD US	MACKLEMORE/RYAN LEWIS/DALTON
13	ANTENNA	FUSE ODG
14	LIGHTS ON	WILEY/ANGEL/TINCHY STRYDER
15	TREASURE	BRUNO MARS
16	WAITING ALL NIGHT	RUDIMENTAL FT ELLA EYRE
17	THIS IS WHAT IT FEELS LIKE	ARMIN VAN BUUREN FT T GUTHRIE
18	HEART ATTACK	DEMI LOVATO
19	WASTING MY YOUNG YEARS	LONDON GRAMMAR
20	I DON'T CARE I LOVE IT	REMIX JUNKIES
21	SO GOOD TO ME	CHRIS MALINCHAK
22	WE OWN IT (FAST & FURIOUS)	2 CHAINZ FT WIZ KHALIFA
23	PLAY HARD	DAVID GUETTA FT NE-YO & AKON
24	POMPEII	BASTILLE
25	CARRY YOU	UNION J
26	BEAUTIFUL	MARIAH CAREY FT MIGUEL
27	HO HEY	LUMINEERS
28	I NEED YOUR LOVE	CALVIN HARRIS/ELLIE GOULDING
29	RADIOACTIVE	IMAGINE DRAGONS
30	KILLING ME SOFTLY	LEAH MCFALL
31	GENTLEMAN	PSY
32	JUST GIVE ME A REASON	PINK FT NATE RUESS
33	YOU & ME	DISCLOSURE FT ELIZA DOOLITTLE
34	I'M YOURS	JASON MRAZ
35	LOVE LIKE THIS	KODALINE
36	WHEN I WAS YOUR MAN	BRUNO MARS
37	CRAZY KIDS	KESHA FT WILL I AM
38	THRIFT SHOP	MACKLEMORE/RYAN LEWIS/WANZ
39	FEEL THE LOVE	RUDIMENTAL FT JOHN NEWMAN
40	GHETTO SUPASTAR (THAT IS WHAT YOU ARE)	PRAS MICHEL FT ODB & MYA