The rap star's debut effort, which sold over 85,000 copies, denied The Script a third week at the top with Science & Faith, instead relegating the Irish band to the runner-up spot.
The rest of the Top 10 sees several old favourites making significant gains, as Sigh No More by Mumford & Sons climbs to three In its 53rd week on the chart, Plan B's The Defamation Of Strickland Banks advances eight spots from 14 to six and former chart-topper 'Recovery' by Eminem rises six places to nine.
The Top 10 is rounded out by this week's second highest new entry, 25 by '80s pop/rock band A-Ha.
Several more albums make their chart debuts within the top 20, as Bring Me The Horizon's There Is A Hell, Believe Me I've Seen It, Selena Gomez & The Scene's A Year Without Rain and Power To The People, a greatest hits collection by John Lennon, land together at 13, 14 and 15 respectively.
Imelda May's Mayhem is the sixth and final new entry of this week's top 20, settling in at 19.
The Top 10 in full:
1. (-) Tinie Tempah: 'Disc-Overy'
2. (1) The Script: 'Science & Faith'
3. (6) Mumford & Sons: 'Sigh No More'
4. (3) Phil Collins: 'Going Back'
5. (4) Central Band Of The RAF: 'Reach For The Skies'
6. (14) Plan B: 'The Defamation Of Strickland Banks'
7. (2) Mark Ronson & The Business Intl: 'Record Collection'
8. (8) Brandon Flowers: 'Flamingo'
9. (15) Eminem: 'Recovery'
10. (-) A-Ha: '25'
Source: Original Charts Company
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