Celebrity Big Brother 15 was the fifteenth series of the British reality television series "Celebrity Big Brother".
 The series launched on 7 January 2015 on Channel 5 and ended after 31 days on 6 February 2015; at the time it was the longest ever celebrity series.
 The seventeenth series in 2016 lasted a day longer with 32 days.
 It was the eighth celebrity series and the twelfth series of "Big Brother" overall to air on the channel.
 Emma Willis returned to host the series, whilst Rylan Clark continued to present the spin-off show "Celebrity Big Brother's Bit on the Side" alongside Willis.
 Repeats of the series aired on MTV, the first to do so.
 Willis decided to leave "Big Brother's Bit on the Side" after the end of this series, hosting her final show on 2 February 2015.
Celebrity Big Brother 2011, also known as Celebrity Big Brother 8, was the eighth series of the British reality television series "Celebrity Big Brother".
 It was the first series of "Celebrity Big Brother" to air on Channel 5, and the first celebrity series not to air in January since "Celebrity Big Brother 2", which was broadcast in November 2002.
 The series launched on 18 August 2011, and ended after 22 days on 8 September 2011, making it the shortest Channel 5 series.
 It was followed by the twelfth regular series, which launched the following night after the final.
 Davina McCall did not return to host the main show, and was replaced by former winner Brian Dowling.
 Emma Willis presented the spin-off show "Big Brother's Bit on the Side", alongside Jamie East and Alice Levine.
 Marcus Bentley returned as commentator for the live shows and highlights whilst also providing voice over for viewer competitions.
Celebrity Big Brother 18 was the eighteenth series of the British reality television series "Celebrity Big Brother", hosted by Emma Willis and narrated by Marcus Bentley.
 The series launched on 28 July 2016, just two days after the conclusion of "Big Brother 17" on Channel 5 in the United Kingdom and TV3 in Ireland.
 The series ended on 26 August 2016, making it the longest summer series to date and the third-longest series of "Celebrity Big Brother" in its history, behind series 15 and 17, respectively.
 Rylan Clark-Neal continues to present the spin-off show "Celebrity Big Brother's Bit on the Side".
 It is the eleventh celebrity series and the seventeenth series of "Big Brother" overall to air on Channel 5.
Luisa Christina Zissman (born Louisa Christina Kalozois; 4 June 1987) is an English retail entrepreneur and reality television personality.
 She was the runner-up on the ninth series of "The Apprentice" and appeared in "Celebrity Big Brother 13".
Celebrity Big Brother 2010, also known as Celebrity Big Brother 7, was the seventh series of the British reality television series "Celebrity Big Brother" and the final series to air on Channel 4 and E4.
 It began on Sunday 3 January 2010 and aired for 27 days until the final on 29 January 2010, making it the longest Channel 4 series of "Celebrity Big Brother".
 The series launched with 6.7 million viewers and became the most watched series of "Big Brother UK" since the eighth regular series in 2007, averaging 3.7 million viewers per night.
Celebrity Big Brother 2012, also known as Celebrity Big Brother 9, was the ninth series of the British reality television series "Celebrity Big Brother".
 It began on 5 January 2012 and ended on 27 January 2012.
 It was the second Celebrity series to air on Channel 5 as part of the channel's then two-year contract with the show and the ninth series of the show to air overall.
 The series was sponsored by Plusnet.
 This was the first of two series of "Celebrity Big Brother" to air in 2012.
Celebrity Big Brother 19 was the nineteenth series of the British reality television series "Celebrity Big Brother", hosted by Emma Willis and narrated by Marcus Bentley.
 The series launched on 3 January 2017 and concluded after 32 days on 3 February 2017, making it the joint longest celebrity series to date along with "Celebrity Big Brother 17".
 The series was shown on Channel 5 in the United Kingdom and 3e in Ireland.
 Rylan Clark-Neal continues to present the spin-off show "Celebrity Big Brother's Bit on the Side".
 It is the twelfth celebrity series and eighteenth series of "Big Brother" overall to air on Channel 5.
Celebrity Big Brother 14 was the fourteenth series of the British reality television series "Celebrity Big Brother".
 The series launched on 18 August 2014 on Channel 5 and ended after 26 days on 12 September.
 It was the seventh celebrity series and the eleventh series of "Big Brother" overall to air on the channel.
 Emma Willis hosted the series, whilst Rylan Clark presented the spin-off show "Celebrity Big Brother's Bit on the Side" along with Iain Lee, Willis and regular panelist Luisa Zissman.
Celebrity Big Brother 13 was the thirteenth series of the British reality television series "Celebrity Big Brother".
 The series launched on 3 January 2014 on Channel 5 and was originally meant to end after 22 days on 24 January 2014.
 However, it was extended due to ratings success and instead ended after 27 days on 29 January 2014, making it the longest Channel 5 series of the show (at the time, since beaten by "Celebrity Big Brother 15") and the joint-longest series, along with "Celebrity Big Brother 7" in 2010.
 It is the sixth celebrity series and the ninth series of "Big Brother" overall to air on the channel.
 Emma Willis returned to host the series, whilst Rylan Clark returned to present spin-off show "Big Brother's Bit on the Side" along with Willis.
Celebrity Big Brother 20 was the twentieth series of the British reality television series "Celebrity Big Brother", hosted by Emma Willis and narrated by Marcus Bentley.
 The series launched on 1 August 2017, and concluded on 25 August 2017 after 25 days, making this the shortest series since "Celebrity Big Brother 12" in 2013.
 The series will air on Channel 5 in the United Kingdom and 3e in Ireland.
 Rylan Clark-Neal will continue to present the spin-off show "Celebrity Big Brother's Bit on the Side".
 It is the thirteenth celebrity series and twentieth series of "Big Brother" overall to air on Channel 5.

Question: Celebrity Big Brother 14 included a spin-off show that included an entrepreneur of what nationality?
Answer: English